Answer:
9
Step-by-step explanation:
Given A=C(1+r)t
to get the formula for cost we make C the subject as follows
divide both sides by (1+r)t, this will give us:
A/(1+r)t=C
hence the cost function will be:
C=A(1+r)^(-t)
I think it's B but I'm not 100% sure
Answer:
116 degrees
Step-by-step explanation:
