Answer:
x=7.78
Step-by-step explanation:
142=10x+8x+2
Move all numbers with the same variables to each side to separate them.
142-2=10x+8x
140=18x
Divide by 18.
x= 140/18
x=7.78
Answer:
803.84 bc radius is half of diameter which is 16
Area of circle is (pi)r^2 = (3.14)16^2= 3.14 x 256 = 803.84
Step-by-step explanation: