The ratio of circumference (C) to diameter (d) is the same for any circle. Knowing this, which is a correct way to find the circumference of a circle? A.
Multiply twice the radius by d/C.
B.
Multiply twice the radius by d/C.
C.
Multiply twice the diameter by C/d.
D.
Multiply twice the diameter by d/C.

Acommunity group sells 2,000 tickets for its raffle. the grand prize is a car. neil and 9 of his friends buy 10 tickets each. when the winning ticket number is announced, it is found to belong to neil's group. given this information, what is the probability that the ticket belongs to neil? a.1/5 b.1/10 c.1/200 d.1/4

Standard deviation of 19,29,21,22,23

Select all the expressions that will include a remainder.