ANSWER QUICK GIVING BRAINIEST! Please answer the following essay question in your own words with 5-7 sentences.

Is it necessary to have a common denominator when you multiply two fractions? Explain.

Use the quadratic formula to solve the equation. if necessary, round to the nearest hundredth. x^2 - 20 = x a. 5, 4 b. -5, -4 c. -5, 4 d. 5, -4

Which expression do you get when you eliminate the negative exponents of 4a^2 b^216a^-3 b

Iwill give brainliest. suppose tommy walks from his home at (0, 0) to the mall at (0, 5), and then walks to a movie theater at (6, 5). after leaving the theater tommy walks to the store at (6, 0) before returning home. if each grid square represents one block, how many blocks does he walk?