The radius is 5cm
Step-by-step explanation:
The surface area of a sphere is given by:

Here
Given
SA = 100π cm^2
Putting the values in the formula

Taking square root on both sides

The radius is 5cm
Keywords: Surface area, Radius
Learn more about surface area of sphere at:
#LearnwithBrainly
Answer:
Answer is B and C Triangles 1, 3 and 4 appear to be congruent
3/4 is 0.75 as a decimal so 4 x 0.75 = 3
Well 1/3 for savings means that you save 1/3*4500 or 1500 dollars.
You then have $3000 left. Of this if you spend 50% on food, you spend 0.5*3000 or 1500 dollars on food.
Answer:
x=63
x+15=78
Step-by-step explanation:
180-102=78
78-15=63
x=63
x+15=78