Check the picture below.
make sure your calculator is in Degree mode.
Answer:

Step-by-step explanation:
60 to 75.
Percentage Increase: (75 - 60) / 60 * 100%
= 15/60 * 100%
= 1/4 * 100%
= 0.25 * 100%
= 25%
Option B.
Answer:
Step-by-step explanation:
7 1/7- 3 5/7= 3 3/7
3 3/7 can also be 3.42 and 24/7