The correct answer would be C.
5 hours because 20 divided by 4 is 5. 20 being the total hours.
Answer:
b= -x+ y/17
Step-by-step explanation:
1. Subtract 17x from both sides of the equation in order to isolate b on one side.
y -17x= 17b
2. Divide every term by 17 in order to isolate b from any coefficients.
y/17 -17x/17 = 17b/17
3. Simplify
b= -x+y/17