Jenny has a stack of nickels and a stack of dimes. There are the same number of coins in each stack. Which expression represents the amount of money Jenny has, where n is the number of coins in each stack? Choose ALL that are correct.

54

step-by-step explanation:

the first one is x^2+2x+2

the second one is x^2+4

the last one is x^2-4x+8

answer: 7 x 2/5 = 2.8 hours, is your answer. your welcome! : 3

step-by-step explanation: first work out how long it took to hose 1/7 of the lawn which is 2/5 hours. times that by 7 to get the whole lawn.

sorry i don't know the other answer. i didn't learn what a proportional relationship is.

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