Answer: 
Step-by-step explanation:

Answer: -3
Step-by-step explanation: 15 - 18 = -3
Pi/3 is in the first quadrant, and all trigonometric functions are positive in the first quadrant,
Therefore, cos pi/3 is positive.
4.03-2.75=1.28
1.28 divided by 0.08 is 16
He made 16 color copies.
Answer: x= 1
Step-by-step explanation: Look at pic down below.