At the market, 5 light bulbs cost $9
How much do 7 light bulbs cost?

If 5 light bulbs cost $9, then each costs $1.8.

Then 7 light bulbs would cost $12.6.

Step-by-step explanation:

If 5 light bulbs costs $9

1 lights bulb‘s cost is 9 divided by 5.

9 divided by 5 is equal to $1.8

1.8 x 7 = $12.6

answer is 12.6

my answer got deleted but it's a

step-by-step explanation:

what are you doing do you need examples of variable questions?

step-by-step explanation:

5a-1=9               bring the one over the =

5a=10                     divide by your variable

a=2

brainliest? ?

here try this one

3a-24=0