Answer:
A
Step-by-step explanation:
Joint variation is given by:

Where k is some constant.
We are given that y = 360 when x = 4 and z = 10. Therefore:

Solving for k:

Therefore, our equation is:

Then when x = 5 and z = 12:

The answer is A.
The answer is c. y=x-2 i believe
Answer:
a.$138
b.$197
Step-by-step explanation:
(/=division)
a.415/30=138
b.138/7=197
Hope I helped :D
No, her answer is not reasonable because one yard is equal to 3 feet.