Answer:
a. 5
Step-by-step explanation:
10÷2=5
5÷1=5
15÷3=5
I believe it is 5 because when simplified they all simplify to 1/5
yes it can be
there are 2 times 8 which equals 16
Susie made the error when she subtracted 2.
where y2=1 , y1=6 , x2=4 , x1=8.