Question

An online electronics store bought 20 keyboards and 15 phone chargers for $130 and then sold each keyboard for $30 and each phone charger for $15.
Part A: Which expression represents the amount of money the store made?
(20)(30) + (15)(15) − 130
(20)(15) + (15)(30) − 130
(20)(30) + (15)(15) + 130
(20)(15) + (15)(30) + 130

Part B: Explain why your answer to Part A is correct.

Part C: What is the value of the expression you chose in Part A? Show each step of your work.

Help plsss

Answer 1

Part a is the fourth one.

Answer 2

Answer:

(20)(30) + (15)(15) − 130

Step-by-step explanation:

Part A: (20)(30) + (15)(15) − 130

Part B (and maybe C. im not sure): Each keyboard is sold for $30 and there are 20 keyboards. So 20*30 is better than writing 30*30*30*30.....

There are 15 chargers and each one is sold for $15. So 15*15 is the answer.

The 130 has a minus (before it) because $130 was spent when they bought 20 keyboards and 15 chargers.