At practice, Diego does twice as many push-ups as Noah, and also 40 jumping jacks. He does 62 exercises in total. The equation 2x + 40 =62 describes this situation. What does the
variable represent?

A: The number of jumping jacks Diego does

B: The number of push ups Diego does

C:The number of jumping jacks Noah does

D: the number of push-ups never does

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To which sets of numbers does -12 belong? choose all answers that are correct. a) natural numbers b) integers c) real numbers d) irrational numbers

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 florida was approximately two times the population of california. b. the population of florida was approximately twenty times the population of california. c. the population of california was approximately twenty times the population of florida. d. the population of california was approximately two times the population of florida.

If f(x)= sqrt4x+9+2, which inequality can be used to find the domain of f(x)?