Apencil costs $0.25 more than an eraser. if the cost of eight pencils is $6.80, what is the cost of one eraser? a. $1.80 b. $0.85 c. $0.60 d. $0.40 e. $0.30

Ok so 8 pencils equals $6.80. So divide that up by 8, and you get $0.85. So next do $0.85 - $0.25 which you get $0.6. The answer is $0.60

Step-by-step explanation:

Cost of pencil = x+0.25

Cost of eraser =x

Cost of 8 pencil = 6.80

Cost of 1 pencil = 6.80/8 = 0.85

So the cost of eraser

0.85 =x+0.25( cost of 1 pencil)

0.85-0.25 = x

0.6 = x

So the cost of eraser is $ 0.6

4 and 5)16.97 or 12√2

6)15.59 or 9√3

7)y = 15.59 or 9√3     x =27

8)17.80

sorry i just need to anwers this to get points

step-by-step explanation: