Answer:
a = = 8.2
Step-by-step explanation:
Look at picture ↓
Volume of a ball = 4/3 x PI x r^3
r = half the diameter.
Volume of 1 ball = 4/3 x PI x 2^3 = 33.5 cubic inches.
Multiply the volume of 1 ball by total balls:
33.5 x 4 = 134 cubic inches.
(3x-1)*(2x+5)=
(6x²+15x-2x*5)=
6x²+13x-5