Answer:
A and B
Step-by-step explanation:
You can take a look at a unit circle to find the solution to this problem (see below).

Hope this helps!
Answer:
0.75
Step-by-step explanation:
15/20 can be reduced to 3/4, which you can find using long division.
3/4 = 0.75
Answer:
24
Step-by-step explanation:
(10-1) x 2 + 2 x 3
9 x 2 + 6
18 + 6
24
Answer:
a
Step-by-step explanation: