Answer:
D. 76
Step-by-step explanation:
200x5%=10
300x7%=21
500x9%=45
10+21+45=76
Answer:
I don't know the answer. .
Answer:
Step-by-step explanation:
10a-15b
Answer:
Yes, a ratio can be simplified.
Step-by-step explanation:
An example of this is 5:10, where it can be simplified down to 1:2.
Answer:
3(7a - 9)
Step-by-step explanation:
21a–27
3*7*a - 3*9
Factor out 3
3(7a - 9)