Answer:
v=-60
Step-by-step explanation:
Answer:

Step-by-step explanation:

You have to prime factorise 81 and then you will get <u>9</u> as the answer.
I haven't done these problems in a really long time, so there's a chance that my answer might be wrong. I hypothesize that the correct answer is C.
Answer:

Step-by-step explanation:







Answer:
b= 12
Step-by-step explanation:
3/b = 5/20
3/b = 1/4
b= 12