5.) In Jack's piggy bank, there is a collection of pennies, nickels, dimes, and quarters which amounts to $2.87. The number of quarters is one less than twice the number of nickels. There are 4 more pennies than nickels.
The number of dimes is twice the number of pennies. How many coins of each kind are there?

true

step-by-step explanation:

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answer:

at time x=0 we have 1000, at time x=1 we have 2000, at time x=2 we have 4000.  

so that's an initial value of 1000 and a ratio of 2,

y = 1000 (2^x)

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2 equivalent expressions to represent the area of a rectangle and the top is n-3 and the side is 2

area of the rectangle = length * width

given length = n - 3

width = 2

replace it in the area

so area of the rectangle = (n-3) *2

= 2(n-3)

one of the expression is 2(n-3)

to get another expression we distribute 2 inside the parenthesis

2(n-3) is 2n - 6

so another expression is 2n - 6

two equivalent expression are

2(n - 3)   , 2n - 6