At the market 5 light bulbs cost 9 dollars how mush does 7 light bulbs cost?

So first off we need to figure out how much each light bulb cost. So 5 divided by 9= 1.8. so each light bulb cost $1.80.  To figure out how many 7 light bulbs cost multiply 7 by 1.8 which equals 12.6. So 7 light bulbs cost $12.60

step-by-step explanation:

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step-by-step explanation:

if you meant, "on the way from (3, 2) to (3, 14):

x does not change; y increases by 12.

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