Answer:
25
Step-by-step explanation:
I am hoping that the a in c = ad is supposed to be x.
The formula for circumference is c = pi * diameter with 3.14 substituting for pi.
Let’s plug in some values
172.7 = 3.14d
Divide
55 = d
The diameter should be 55 cm.
The one that doesnt belong is the 3 one
10 5's go into 55 and
1 10 goes into 11
The answers I gave are only if you want them in 10's
