Me it is urgent pls the first one is solve and the 2nd one is simplify i will give u lots of points you

7x+8y=-18, 4x-9y=-3 solve the system of equations

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.

Which two undefined geometric terms always describe figures with no beginning or end?