Question
One card costs $i. One pencil costs $(i + 15). One story book costs $4i.
  1. Riordan bought 4 cards, 3 pencils and 1 story book. How much did he spend? Simplify your answer in terms of i.
  2. If i = 7, how much did Riordan spend altogether?
4 m
(a)

Click button first when a symbol is required. X

(b)

Click button first when a symbol is required. X

One card costs $i. One pencil costs $(i + 15). One story book costs $4i.
  1. Riordan bought 4 cards, 3 pencils and 1 story book. How much did he spend? Simplify your answer in terms of i.
  2. If i = 7, how much did Riordan spend altogether?