Please help
what is 6 * 6 * 6 + 9 - 7?

Given the two similar triangles, how do i find the missing length? if a=4, b=5, and b'=7.5 find a'

Grandpa ernie is shrinking! over the past 4 years his height decreased by a total of 2.4 cm. it decreased by the same amount each year. what was the change in grandpa ernie's height each year

Which of these phrases uses parallelism to create a sad tone?