You're question doesn't make any sense do you mind asking it again for me>?
30 and 12 because add them together and they get 42 and subtract them they are 18.
Answer:
7
Step-by-step explanation:
28x7=196
196=14^2 aka a perfect square
The first one is a. If you solve for x, equals 50. And if you retrace the steps described in a, describes the situation. Lost half, then one more.
The second is c, the inequality describes the condition and solves how many commissions he needs to earn at least 100 or more dollars a day.