pls restate, answer, and add details tysssm!

HELPPPPPPPP!!!! what is a mutation that a polar bear can have to help conserve energy and how do genetic mutations relate to chromosomes, genes, protein, and DNA? A 15.0 cm object is 12.0 cm from a convex mirror that has a focal length of -6.0 cm. What is the height of the image produced by the mirror?5.0 cm7.5 cm-7.5 cm5.0 cm One of the article's central ideas is that Washington had personal traits that helped him in his role as president. How does the author introduce this central idea? What forced the United States into World War II?Pearl Harbor being bombed.England being bombed.The movement of Hitler.The movement of the Japanese. What does this excerpt convey about Roderick Ushers character?The Fall of the House of Usherby Edgar Allan PoeAlthough, as boys, we had been even intimate associates, yet I really knew little of my friend. His reserve had been always excessive and habitual.A. Rodericks ability to befriend the narratorB. Rodericks dependence on othersC. Rodericks distrust of the narratorD. Rodericks isolation even as a child the probability that a student takes spanish is 70%. The probability that a student takes spanish and they are a freshman is 30% what is the probability that a randomly selected student is a freshman given that he/she takes spanish When was the copper vein at Santa Rita discovered? Which are true about the economic challenges the Russian Federation faced after the fall of the Soviet Union? Select all that apply.Select 3 correct answer(s)Question 1 options:They were not sure where to begin to spend the money collected from high taxes imposed on the people.It was a difficult transition from a communist to capitalist society.Many of the same types of businesses opened, causing shortages in necessary supplies.The government could not collect taxes.Many lost their jobs due to the lack of interest in buying government land. A toy radio-controlled car races around a circular track in a time of 2 MINUTES, with a speed of 5.25 m/s. What is the radius of thecircular track? (will give brainliest) 5. Find the missing reference angle using arcsin, arccos, or arc tangent. (Round tothe nearest whole number)144850Your answer Describe the difference between a flask, beaker, and graduated cylinder. How does the purpose of each differ? Hello! Please help me. Huhu 170% of what number is 40?Provide and exact fraction answer Find the 100th term for the sequence. -9,-4, 1, 6, 11, ....... what is the least common denominator between 3/4 4/5 and 2/3 What is 4 1/7 in simplest form ?? PLSS HELP ME I AM GOING TO CRY IF I DONT GET THIS ANSWER PLSS HELP ME What is the slope-intercept equation of the line below? Please please please help Fig_Q56. A steel rod is stressed by a tension force of 250 N. It is found that the rod has length of 45m and diameter of 1.5 mm. If the modulus of elasticity of the steel rod is assumed as 2 x 105MPa, determine the strain of the steel rod due to the applied force. ANSWER ASAP PLEASEEEE SKSKSSKSWhich number is irrational?A. 9B. 10C. 16D. 25E. 36