Answer:
Step-by-step explanation:
What is the sum of 34+5
Equation is x^2 + 7x
Proof is by setting that equal to 144, then subtracting it to move it to the other side
Simplified to (x-9) (x+16)
Answers are 9 and -16
1st day
8 hours = 420 circuits
2nd day
8 hours = 420 + 36
= 456 circuits
Average = 456/8
= 57 circuits per hour
Option C. Is the right answer