Question
One stamp costs $a. One marker costs $(a + 15). One textbook costs $4a.
  1. Mark bought 7 stamps, 3 markers and 1 textbook. How much did he spend? Simplify your answer in terms of a.
  2. If a = 14, how much did Mark 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 stamp costs $a. One marker costs $(a + 15). One textbook costs $4a.
  1. Mark bought 7 stamps, 3 markers and 1 textbook. How much did he spend? Simplify your answer in terms of a.
  2. If a = 14, how much did Mark spend altogether?