Answer:
y = 1.05x + 4.45
Step-by-step explanation:
I dont know what sin is
Answer: x^2+4
x= - square root 141 or x= square root 141
12x84-(-7000)
1008+7000
=8008
Easy
I think it's C) 18.5ft^2
it's just an educated guess though I haven't worked on area in a while