We are having trouble with question 7

First off, you can multiply a 2-digit number by 2 and just add 0 to the product. For instance: 12 x 20 

Number line: two jumps of number 12.

So : 12 x 2 = 24

Finally,  12 x 20 = 240

Hope this helped.

the dimensions are:

step-by-step explanation:

we want to find the dimensions of a rectangular box with volume of

we factor to obtain;

we rewrite the rightmost factor to obtain;

recall that:

we apply difference of two squares formula to obtain;

hence the dimensions are

5y

step-by-step explanation: