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Three times the sum of a number and seven is negative thirty-six. what is the number?

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.

Reinel saves 30% of every pay check. his paycheck last week was 560$. how much did reniel save last week?