Answer: 2x+5y=100 and x+y=38
Step-by-step explanation:
Let x = number of problems on test
If he got 14 wrong, then x - 14 is the number correct.

x - 14 = .72x
.28x - 14 = 0
.28x = 14
x = 50
The test consisted of 50 problems.
you need to add for number one you need to subtract for number two you need to add for number 3 you need to subtract for number 4
Answer:
Step-by-step explanation:
the slope of line n is also -3 as it is parallel to m
The answer is A