Answer:
-15
Step-by-step explanation:
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Answer: 2a+c
Step-by-step explanation: You add all variables that are positive then you subtract by negatives or vice versa. Add 3a+6a-7a yes subtract the 7a which gets you 2a. Add 8b+b-9b, you get 9b-9b which is 0 so you don’t need b in the problem anymore. -5a+4c+2c then you get c, because it is 1 c. So your answer is 2a+c. :P Hope this helped.
If a package is dropped at a height of 121m ,above the Earth, from a window. It will take <span> 5.53 seconds for the package to reach the ground. </span>
Answer:
A
12x^4 + 10x^3-22x^2 - 15x
Step-by-step explanation:
