Answer:
B. 20/21
Step-by-step explanation:
Tan of an angle is the ratio of the opposite side relative to the angle over the adjacent side.
The opposite side of x is 20 and the adjacent side is 21, so it's 20/21
Monday through Thursday is 4 days and John has 1.5 hours of homework for those days. Therefore 1.5 x 4 = 6 hours from Monday-Thursday. He also has 2.75 hours on the weekend so in a week he has 6 + 2.75 = 8.75 hours of homework. 8.75 = 8 3/4 hours