Valeria bought a 9-foot length of ribbon from which she wants to cut 23-foot pieces. How many pieces can she cut? What will be the length of the leftover piece of ribbon?

answer: c

(2, -4)

goes 7 to the

(9, 4)

easy

take the logarithm of both sides (the base of the log doesn't matter):

apply the exponent property - this says that :

distribute the log terms on both sides:

group like terms together:

divide through both sides by the coefficient on :

you can do some additional rewriting here using the properties of the logarithm to simplify things if you like:

step-by-step explanation: