Answer:
a=20
Step-by-step explanation:
7+13=20
20-7=13
So from solving the problem, we know that the answer must equal -28.
When you solve all of the given options, we find that the only one that does equal -28 would be A.) (-6)(4) + (-6)(2/3).
When I doubt, solve it out. I hope I could help!
4x - 24 = -2x + 30
4x + 2x = 30 + 24
6x = 54
x = 9
answer: the number is 9
All you do is divide.
330/390= 0.846
round it: 0.85
Answer is about 85%