-16 divided by 0 whick would be 0
1.y=-2x-3
2.y=2x+1
3.y=-3x-3
4.y=1/2x+2
first multiply 3 into 16 which is 48 bcz 1 pound is of 16 ounce
then
divide it by ⅓
⅓ into 48
simplify it
16 is the answer
Refer to the diagram shown below.
Because tan θ = 12/5 and cos θ = -5/13, therefore θ is in quadrant 3.
The sine function is negative in quadrant 3, therefore
sin θ = - 12/13
Answer: - 12/13