To get better at 12's:
Write down on your paper your 1's facts in column skip 5 and 11 going to 14 (a vertical line - line that goes up and down). To the right of that column, write your two's facts 0 to 8 and repeat again. Then you will have your 12's! Should look as follows
12's:
0 0 = 12 x0
1 2 = 12 x1
2 4 = 12 x2
3 6 = 12 x3
4 8 = 12 x4
6 0 = 12 x5
7 2 = 12 x6
8 4 = 12 x7
9 6 = 12 x8
10 8 = 12 x9
12 0 = 12 x10
13 2 = 12 x 11
14 4 = 12 x 12
Y-y1=m(x-x1)
y-5=10(x-1)
Y-5=10x-10
Y=10x-5
Answer: 
Step-by-step explanation:
Divide by 23
Extract the square root.
Answer: a=60
Step-by-step explanation:
1/4 because 6/24 can be simplified all the way down to 1/4
