Can you post the image because I need to clarify in your trigonometry hw
Answer:

Step-by-step explanation:
so they get paid 175 in total for two days so 24 hours are in one day but we are looking for the hourly pay for two days so we use 48 as a dividing variable . so 175 divide by 48 is 3.65 so they get paid 3.65 per hour but if we have to round it out then 4 per hour
Answer:
The answer is X=3/4 or -1/2
Yes you are right it's C)
Notice that f(-2) = (-2)³ +2( - 2)² + 4(-2) + 8 =0
Then x³+2x²+4x+8 is divisible by (x+2)
Perform this division & you will get:
x³+2x²+4x+8 = (x+2)(x²+4)
The root of (x+2) is the value that render it nil, that is x=-2
The root of (x²+4) are imaginary (not real) because
x²+4 =0 ==> x² = -4 & x=√-4 or x= 2i (nor real).
Hope you understood the reasoning