Use the formula A=P(1+r)^t to find the rate r at which $3000 compounded annually grows to $6750 in 2 years

use the formula A=P(1+r)^t to solve the following problem find the rate at which $100,000 grows to $129,960 in 2 years

I'm trying to help a friend, but I didn't learn this when I did algebra a couple years ago

use substitution to solve each system of equations. y = x + 5 3x + y = 25 62/87,21 y = x + 5 3x + y = 25 substitute x + 5 for y in the second equation. substitute the solution for x into either equation to find y. the solution is (5, 10)

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