Chris is twice as old as don, and next year the sum of their ages will be four times as much as don’s age last year. find their present ages.

What are the related frequencies to the nearest hundredth of the columns of the two way table? group 1: a-102 b-34group 2: a-18 b-14edited: i don’t have all day to be waiting for an answer. i figured it out.

What is the answer to this question? i'm a bit stumped. also how do i do it? 5(x - 4) = 2(x + 5)

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