4:1
Multiply each side by 2 to make the left side 8:
8:2
8+2=10
She had a total of 10 homework problems.
Hope this helps :)
Answer:
100 pi cm^2
or approximately 314 cm^2
Step-by-step explanation:
The surface area of a sphere is given by
SA = 4 pi r^2
The radius is 5
SA = 4 *pi * 5^2
SA = 4*pi(25
SA = 100 pi cm^2
If pi is 3.14
SA = 100 *3.14 = 314 cm^2
Fifteen-thousand-four-hundred-and-nine.
10,000+5,000+400+9
