The science center has 300 people in attendance on Tuesday. This is 150 percent of the attendance on Monday. Natasha is trying ti figure out how many people were in attendance on Monday. Her work is shown below. What mistake did Natasha make?

Solve this system of equations. 12x − 18y = 27 4x − 6y = 10

Prove that the value of the expression 7^8–7^7+7^6 is divisible by 43.

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.