Mr. moore has 21 feet of wallpaper he cuts it into sections that are each 3 feet long how many

Total = 21 feet

if each is 3 feet

21/3 = 7

Therefore, there are 7 sections

d. 8

step-by-step explanation:

the given radical expression is:

we can rewrite this as:

we express as square numbers to get;

the exponents will now cancel out to give.

the correct answer is d

to determine the unit cost your would divide the total cost by the number sold.

7 bagels for $4.41       $4.41/7 = $.63 each at fresh side

5 bagels for $3.60         $3.60/5 = $.72 each at value mart