Simplify a12•a4 and a8•a8 to equivalent exponential expressions. Does a12•a4=a8•a8 for all values of​ a? Use pencil and paper. Give another way to justify your answer without doing any arithmetic.

How many of the 250 grandparents in the population would you expect to prefer online shopping with merchant a? merchant a: 4 merchant b: 6 merchant c: 2 merchant d: 3 other: 5 none: 5 answer choices: a.about 4 b.about 8 c.about 40 d.about 21

Ageologist had two rocks on a scale that weighed 4.6 kilograms together.rock a was 0.5 of the total weight.how much did rock a weigh?

What is the value of f(x) = 2.2 for f(-2)?