First, you multiply 42 by .15 which you get $6.30
Then, you subtract $42 by $6.30 which you get the answer: $35.70
B) 1197 Cubic Ft.
Explanation: You have to make 13 and 10 to the power of 3. 13^3 = 2197 and 10^3= 1000. Then you subtract and get 1197
Answer:

So ΔQRS ~ ΔTUV
Step-by-step explanation:
Distribute proporty
a(b+c)=ab+ac
3=a
b=40
c=7
3(40+7)=3*40+3*7