Alright so first he paid 45 for the guitar he resold it for 51.75(15% of 45 is 6.75) then spent 18.63(36% is 18.63)on books
I hope this helped...
Answer:

Step-by-step explanation:
Use the acronym SOH-CAH-TOA
sin = 
So opposite is 3 and hypotenuse is 4.
tan = 
So opposite is -3 and adjacent is 4.
cos = adjacent/hypotenuse
cos = 
11/14 is 0.785...
In percentage, this is 78.5%
Rounding to the nearest ones, the ANSWER would be 79%
Answer:
- Angle e = Angle <em><u>a</u></em>
- Angle f = Angle <em><u>c</u></em>
- Angle a, b and c add upto <em><u>180</u></em><em><u>°</u></em><em><u> </u></em><em><u>,</u></em><em><u> </u></em>as they are on straight line.
- therefore Angle e , f and b also add upto <em><u>180</u></em><em><u>°</u></em><em><u> </u></em><em><u> </u></em>
<em><u>i</u></em><em><u> </u></em><em><u>hope</u></em><em><u> </u></em><em><u>it</u></em><em><u> </u></em><em><u>helped</u></em><em><u> </u></em>
An institutional investor is a person or organization that trades securities in large enough quantities that it qualifies for preferential treatment and lower fees. A retail investor is an individual or non-professional investor who buys and sells securities through brokerage firms or savings accounts.
tip: make sure to reword it