There are 18 crayons
Explanation:
1 whole = 12 crayon
1/2 of 12 is 6
12+6=18
X = -3, y = 2 rise over run
$45+$18+$26-$21-$93
45+18=63
63+18=81
81+26=107
107-21=86
86-93=-7
Answer:
it is 9 bc it adds up to 99
Step-by-step explanation:
All the angles should add up to 360°.
8x+10x+9+21x-12+90=360°
Group like terms together.
So,8x+10x+21x+9+90-12=360
39x+87=360
39x=360-87
39x=273
x=7