We can solve this question in 2 ways: either using
degrees or converting the degrees into
radians.
Since, the question says degrees itself and there is no specification of using radians only, so I have solved it using degrees itself.
Part (a):
Perimeter of sector ORS = 2*Radius + Arc RS = 2*21 +

Part (b):
Area of sector ORS =

Area of sector POQ =

Thus, area of shaded region
= Area of sector ORS - Area of sector POQ
=
Standard form:
-4x^3 - 6x^2 + 2x + 12
Degree = 3
Terms = 4
Zeros = 3
Answer:
He raised $25.50 over his fund raising goal
Step-by-step explanation:
Here, we want to calculate his fund raising goal.
Let his fund raising goal be $x
We are told that he raised 151% of his fundraising goal;
Thus,
mathematically;
151% of x = 75.5
151/100 * x = 75.5
151x = 100 * 75.5
151x = 7550
x = 7550/151
x = $50
So the amount he raised over his fund raising goal will be $75.50 - $50 = $25.50