The hardware store sells batteries individually. Five batteries. cost $4.50, and seven batteries cost $6.30.
How much do 8 batteries cost?

i think the answer is 7.20

Step-by-step explanation:

It's 7.20

Step-by-step explanation:

4.5/how many batteries sold at that amount

4.50/5

=0.9

8 batteries =6.30+0.90

=7.20

4038

step-by-step explanation:

pleaze mark brainliest!

the formula of a slope:

from a table we have

substitute:

the slope of f(x) is -1.

the graph of funcfion g(x) is a horizontal line. the slope of a horizontal line is equal 0. therefore the slope of g(x) is 0.

-1 < 0