Answer:
a = -3
Step-by-step explanation:
a - 2 + 3 = -2 ( cancel equal terms)
a + 3 = 0 (Move the constant to the right)
a = -3
I believe that the answer is C
BISECTOR OF AN ANGLE
15) n+4
16) n-6
17) n+3
18)n-2
19)n+6
20) n-8
Answer:

Step-by-step explanation:
There are 99 - 10 + 1 = 90 numbers between 10 and 99
There are 18 numbers that have at least one two digit.
