Answer:
3.since two base side are equal
4.sum of interior angle of the triangle is 180
9.base angle of isosceles triangle
16.the inscribed angle from the diameter is 90°
21.being CAE=90°
D. 48 she must rent 48 in order to receive the cash prize
First multiply each term by 24(the common denominator found by 8×3) to remove the fractions and make things easier.

This will give you,

Then just continue to simplify and isolate the variable.


