Answer:
The surface area of the ball is of 29 square inches.
The volume of the ball is of 15 cubic inches.
Step-by-step explanation:
The ball has an spherical format:
Circumference of a sphere:
The circumference of a sphere is 6.2832 times the radius.
Surface area

In which r is the radius.
Volume:

The circumference of the ball is 9.4 inches.
So the radius is:


Surface area

Rounding to the nearest unit, the surface area of the ball is of 29 square inches.
Volume:

Rounding to the nearest unit, the volume of the ball is of 15 cubic inches.
Answer: Max has 4 cards.
Step-by-step explanation: 2/6 is equal to 1/3 so 4/6 is equal to 2/3
Also an easier way is to divide 4 by 2 to get 2 and 6 by 2 to get 3.
20%
A change from 65 to 78 represents a positive change (increase) of 20%
Use the formula found below to find the percent change by replacing the given values:
Percent change = [(New - Old ) / |Old|] x 100%