Answer:y=10
Step-by-step explanation:
Since 90 degree is 1/4 of a circle, the area will be 1/4 th area of the full circle.
The radius is given by, r = 8 ft, therefore, the area of the full circle is,

Therefore, the area of the sector is,

Answer:
Yes they are.
Because:
As said in the rules you have to keep the bases and add the exponents.
Answer:
Either d or b and b looks like it works hte best
Step-by-step explanation: