Answer:
I'm sorry I would help you I don't understand the second sentence.
Step-by-step explanation:
Step-by-step explanation:
the formula to calculate a circumference is

(consider x as the diameter)
so I'll be noting the circumference as C alongside the circle's ranking
a.

b.

c.

hope I helped
Answer:
Think about what number you got multiply 7 to get 28. Once you do, multiply the other numbers by that digit
Step-by-step explanation:
The answer to the expression is -97/20 or -4.85