Question

Andre received $60 for his birthday and put it in his piggy bank. Each week, he puts 3 more dollars in his bank. The amount of money in dollars D in his bank is given by D = 3w + 60, where w is the number of weeks he has saved 3 dollars. His sister Lana makes a table of reasonable values for w. Lana selects 12 as a value for w.

What is the corresponding table entry for D?

A.
372

B.
96

C.
75

D.
64

Answer 1

The formula for the amount D that this guy has in the bank is given and is D = 3w + 60.
We're told that w=12 weeks.

Substitute 12 for w in the equation and evaluate D.

D(w) = 3w + 60

D(12) = ????

Answer 2

3(w+20) @mathmale

Answer 3

@mathmale