157k views
4 votes
At the market, 5 light bulbs cost $9dollar 
How much do 7 light bulbs cost?

1 Answer

2 votes
9/5= 1.80
1.80x5= 9
so, each light bulb costs 1.80
1.80x7=12.6
the answer is 12.6
User Michael Brown
by
7.5k points