Simplify 9^1/3 • 81^1/3

a) 3 sqrt 9
b) 9
c) 81
d) sqrt 9

not just the answer, give you

Zoe placed colored blocks on a scale in science class. each block weighed 0.8 ounces. the total weight of all the colored blocks was 12.8 ounces. how many blocks did zoe place on the scale? write and solve an equation to find the answer.

(urgent ) use pi 3.14 to estimate the circumference of the circle to the nearest hundredth middle is 4in (urgent )

The table shows the balance of a money market account over time. write a function that represents the balance y(in dollars) after t years.