A.
You can subtract values that are being divided in Sin waves.
Answer:
- 4 1/2 + 3 1/4
-9/2 + 13/4
the lcm is 4
-18/4 + 13/4
=-5/4
= -1 1/4
Step-by-step explanation:
Answer:
90
Step-by-step explanation:
100-10=90
Answer:
9 squares on each side of the square.
Step-by-step explanation:

There are 9 equally sized blocks on one side of square piece of graph paper.
Best Regards!