Answer:
c
Step-by-step explanation:
c is 2x-7y= -56 and 7x+2y=8
Answer: -9^5 = -59049
Step-by-step explanation: you would just multiply -9 by 5.
-z³ + 5k^6 + z³ -10k^6
(-z³ cancels out with z³)
5k^6 -10k^6
(then subtract)
Answer is -5k^6
Answer:
its b
Step-by-step explanation: