Answer:
The answer is: 8a + 5b - 9
Answer: 904.32 cubic units.
Step-by-step explanation:
The formula for a sphere's volume is V = 
Substitute pi for 3.14 and radius for 6. 6^3 = 216

Multiply them together, the answer is 904.32 cubic units.
14x45=630
43×2=86
(14×45)-(43×2)= 630-86=544
there would be 544 pens left
The answer is (-2,-3) Thank you and please rate if I helped you! Thanks again!