Answer:
(x*$3.50)+(y*$2.00)=$20.00
Step-by-step explanation:
The formula to find the volume of a sphere is: V=

Since the diameter is 18 cm, so the radius is equal to r=18/2 = 9
Now we replace r by it's value, so we get:



And we get approximately

Hope this Helps :D
Answer:
(3,2)
Step-by-step explanation:
72 if your needing to times them
The two numbers are 0.85 and 0.15
if you add them together you get 1, 0.85+0.15=1
and if you subtract them you get 0.7, 0.85-0.15=0.7