Mrs. mcintyre needs to buy pencils and erasers for her math class. the store is selling a box of pencils for $2 and a box of erasers for $1. she needs to buy four times as many pencils as erasers. if she can only spend $18, how many boxes of each will she buy?

8 boxes of pencils and 2 boxes of erasers

Step-by-step explanation:

2 times 4 equals 8, which is the part where she needs to buy 4 times as many pencils as erasers.

8 times 2 is 16 and 1 times 2 is 2 add both 16 and 2 together and you get 18 so she spends all $18

c

step-by-step explanation: easy math

the answer is b.

64

step-by-step explanation:

c=2πr=2·π·8≈64