During the summer in Phoenix, a central air conditioner in a house uses 1.7 kilowatt/hour for 18 hours. If electricity costs $0.10 per kilowatt-hour, how much does it cost (in dollars, to the penny) to cool the house? Use exact numbers; do not estimate. g

10x

step-by-step explanation:

the greatest common factor 30 and 20 is 10

5 is a common factor of 30 and 20 but 10 is also a factor and 10 is greater than 5 so 5 will definitely not be apart of our answer

now the most amount of x's you factor our is just 1 factor of 1

so 10x the gcf of the terms in the polynomial

-2x + 7 = 7

subtract 7 from both sides.

-2x = 0

divide both sides by -2.

x = 0

answer: 12   they all have at least 28 days

step-by-step explanation: haha

c. 1,233 miles