What is the value of (fog)(-5)

f(x)=x-10 ; g(x)=x2-3

a. (fog)(-5)= -38
b. (fog)(-5)=12 <--- ?
c. (fog)(-5)=222
d.(fog)(-5)= -228

4 answers

g(-5) = 25-3 = 22

f(22) = 22-10 = 12

yes
Thanks... can you help me with this question also?

spencer deposit 540 in a bank account that pays annual simple interest rate of 4.5%. How much interest will he earn after 3 years?

a.about $73.00
b.about $7,290.00
c about $126.00 <-- im not sure.
d.about $200.00
it is simple, not compound, interest

3*.045*540 = 72.9 or about 73
ohhh thanks! sorry for posting this question twice.