Evaluate the following expression when x=-5 and y=7: *enter numbers only

You paid 28.00 for 8 gallons of gasoline. how much would you pay for 15 gallons of gasoline?

If you have 12 feet of string and you cut it into equal length of 5 inches each how much string will be left

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.