One pen costs $
g. One stapler costs $(
g + 15). One guide book costs $5
g.
- Oliver bought 4 pens, 3 staplers and 1 guide book. How much did he spend? Simplify your answer in terms of g.
- If g = 4, how much did Oliver spend altogether?
(a)
Cost of 4 pens = 4 x
g = $4
g Cost of 3 staplers = 3 x (
g + 15) = $(3
g + 45)
Cost of 1 guide book = $5
g Total amount that he spent
= 4
g + 3
g + 45 + 5
g= 4
g + 3
g + 5
g + 45
= $(12
g + 45)
(b)
If
g = 4,
total amount that he spent
= 12
g + 45
= (12 x 4) + 45
= 48 + 45
= $93
Answer(s): (a) $(12
g + 45) or $(45 + 12
g); (b) $93