Yes, since you are adding two negative it will be a negative. and sinceo your subtracting from a negative it will also be a negative. they both equal -7
She has 8 dimes, 11 quarters, and 22 nickels
Answer:
7.14285714286
Step-by-step explanation:
The lines are perpendicular if their slopes are negative reciprocal of the other.
Since 9/2 is just a reciprocal and not the NEGATIVE reciprocal of 2/9, the lines are NOT perpendicular.
