Answer: 
<u>Step-by-step explanation:</u>

Answer:
100*150=15000 calories
Step-by-step explanation:
100 times 150 is 15000 because you are multipling 2 people
I don't know if it is correct
just check and if it isn't then check some one elses work.
Answer: -2a + 3b
Solution:
3b - 2a
Simplify
= -2a + 3b