Whats the best way to do this
phillip charged $400 worth of goods on his credit card. on his first
bill, he was not charged any interest, and he made a payment of $20. he
then charged another $18 worth of goods. on his second bill a month
later, he was charged 2% interest on his entire unpaid balance. how much
interest was phillip charged on his second bill?

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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step-by-step explanation:

ca = ec

cpctc makes it so that corresponding parts of the triangle you proved to be equal are equal, the other options aren't part of the part of the triangles you proved to be equal.