Step-by-step explanation:
factor sin(x) out of the equation
sin(x) * (
) = sin(x)
Use the trigonometric identity 
sin(x) * 1 = sin(x)
sin(x) = sin(x)
Multiple the cost of the water bottle ($2.75) then whatever you answer is, you subtract that from 18. She should have $12.5 left. The most bags of popcorn she could get is 3. Just add $3.50 until it’s closes to the amounts of money she has left.
Answer:
1
Step-by-step explanation:
Use the Negative Power Rule:
x^-a=1/x^a
3*1/3
Cancel 3
=1
The perimeter would be all the side lengths added together, which would be 10,8, and 7. 10+8+7=25