Which of these is a mathematical expression? A
B
4 - 3r

C
4 - 3r = 1

D
“Happily ever after”
PLEASE HELP ITS ON A QUIZ AND ITS DUE IN TEN MINUETS

Long division the problem is 40 ➗ 348 = ?

Aparticular telephone number is used to receive both voice calls and fax messages. suppose that 25% of the incoming calls involve fax messages, and consider a sample of 25 incoming calls. (a) what is the expected number of calls among the 25 that involve a fax message?

According to the 2008 u. s. census, california had a population of approximately 4 × 10^7 people and florida had a population of approximately 2 × 10^7 people. which of the following is true? a. the population of california was approximately two times the population of florida. b. the population of florida was approximately twenty times the population of california. c. the population of florida was approximately two times the population of california. d. the population of california was approximately twenty times the population of florida.