Answer:
he started with 12 pencils
Step-by-step explanation:
lost 2.25 of his pencils
got 3 more
12 total
12-3=9
9 is 3/4 of the starting number
3,6,*9*,12
4(3x-2)
Step-by-step explanation
6x+12/2x-8
6x+6x-8
12x-8
160°
The formula below gives the measure of an interior angle of a regular polygon of n sides.
[(n - 2)180]/n
[(18 - 2)180]/18
16(10)
160
Answer: 160°
The Answer Is D! Hope This Helps You