Answer:
1. 49a^6b^10
2. −81a^8b^2c^2
Step-by-step explanation:
N/A
Answer: 
Step-by-step explanation:
For this exercise you need to remember:
1) The mulitplication of signs:

2) By definition, like terms contain the same variables with the same exponent.
Then knowing this, and given the equations:
and 
You must subtract the like terms, which means that you must subtract the numerical coefficients of each term.
Then, you get the result is:

Answer:
Melanie has 28 cousins.
Step-by-step explanation:
4 x 7 = 28
I hope this helped and if it did I would appreciate it if you marked me Brainliest. Thank you and have a nice day!
Expanded form is writing out everything and no simplifying.
A. c times c
B. t times t times t times t
C. 2 times x times x times x
D. 4 times 4 times h times h
E. 2 times 2 times 2 times l times l times l
F. a times a times a + 7 times b times b
Hope this helps :)
Answer:
110%
Step-by-step explanation:
1 2/20=22/20 which = 110%