Answer:
rotating around y = 1 will make the sphere.
Step-by-step explanation:
Volume formula is volume=base x height (v=bh)
b=9 x 12
b=108
v=108 x 10
v=1080ft³
Answer:
2/5
Step-by-step explanation:
First calculate the area of the floor, this would be 30*50 = 1500 square feet
Now multiply the area by the cost for each square foot, so 1500*0.5 = $750
