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Explain some properties that may be used when proving what a variable equals in an algebraic equation. What do you need to do to prove a line is an angle bisector of an angle?

The function for plan a says that the cost is 12% of the miles driven plus 75 (whatever currency you are using).

the function for plan b costs 35% of the miles driven.

as the number of miles inceases, so will the cost.

here, plan b is more cost efficient since it is the least costly.

say we drive 250 miles, the for

plan a:
f(m) = .12m + 75
= .12(250) + 75
= 30 + 75
= 105

plan b:
f(m) = .35m
= .35(250)
= 87.5