Answer:

Step-by-step explanation:
see the attached figure to better understand the problem
we know that
----> by angle addition postulate
substitute the given values

Answer:
13/24
Step-by-step explanation:
Find the LCD of 8 and 3, which is 24.
Now, multiply both numerators so that the following fractions would be equal:
7/8 = x/24
1/3 = y/24
Our result is that
7/8=21/24
1/3 = 8/24
21/24 - 8/24 = 13/24
Answer:
$88
Step-by-step explanation:
first, you find 20% of 57 which = 11.4
then subract it with 57 which looks like 57-11.4 = 45.6
= 45.6
first, you find 20% of 53 which = 10.6
then subract it with 53 which looks like 53-10.6 = 42.7
= 42.4
then you add them both which = 45.6+ 42.4= 88