Ineed figuring out how to find the angles of a triangle. i know how to get 180, just when there are 2 joined together, i can't find the angle that either adds up to 90, or 180. you may not understand completely, but try your best to me.

Find the x-intercept and y-intercept of the line. 3x + 5y = −15

I’m stuck on this equation, anyone got the answer?

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.