Answer:

Step-by-step explanation:
Given
The above diagram


Required
Determine length AB
Tangents drawn from the same point of a circle are equal;
<em>This implies that</em>

Substitute values for AB and AC

Subtract 3y from both sides


Divide both sides by 8



Substitute
for y in 




<span>8/t = 7/28 = 11/44 what does t =? t= 32</span>
Answer:
Step-by-step explanation:
21: 9/15+1/4= 0.85, if you turn that into a percent it is 85%
23: 7/15+1/4 = 0.716, turned into a percent is 71.6%
i dont have the time to finish the rest rn, sorry