Answer:
c = 24
Step-by-step explanation:
The given equation is :

Adding both sides by 5 both sides,

Cross multiplying both sides,

c = 24
So, the value of c is 24.
Answer:

Step-by-step explanation:
You just multiply across the numerators and denominators. 14/30 can be divided by 2 on both sides to get -7/15.
Answer: A. 30
Step-by-step explanation:
The formula for the area of a circle is pi*r^2, where r is the radius of the circle.
900pi = pi*r^2
Divide both sides by pi.
900 = r^2
Square root both sides.
r = +/- 30.
Since the radius cannot be negative, the answer is 30 units.