7x - 3y = 24
7x - 24 = 3y
(7x - 24) : 3 = y
Answer:
Step-by-step explanation:
Substitute the second equation into the first one:
Substitute into the second equation:
Surface area of a sphere = 4πr²
Surface area of the sphere = 4π(0.8)² = 8.0 ft²
Volume of a sphere = 4/3 πr³
Volume of the sphere = 4/3 π(0.8)³ = 2.1 ft³
Answer: Surface area = 8.0 ft² and volume - 2.1 ft³ (Answer C)
Jill and Gill will have the same amount of money in week 13, they will both have $410.