The <em><u>correct answer</u></em> is:
D) The amount a person pays for gas compared with the number of gallons purchased
Explanation:
A constant rate of change means that for every x, y increases the same amount.
In the situation "The amount a person pays for gas compared with the number of gallons purchased
," the independent quantity, or x-value, is the number of gallons, and the dependent quantity, or y-value, is the amount paid. Since gas has a set price per gallon, for every gallon purchased, the total amount paid goes up the same amount. This means it has a constant rate of change.
Place value. when multiplying by 10 you are moving a decimal, having everything lined up like place value would save you a lot of time.
3(x + 6) - 2(x + 2) > = 10
3x + 18 - 2x - 4 > = 10
x + 14 > = 10
x > = 10 - 14
x > = -4 <===