The data below are the gestation periods, in months, of randomly selected animals and their corresponding life spans,
in years. construct a 95% prediction interval for y, the life span, given x = 10 months, y = 1.523x + 6.343, and
se 5.618. round interval to two decimal places.
gestationx: 8,2.1,1.3,1,11.5,5.3,3.8,24.3
life span y: 30,12,6,3,25,12,10,40

What are the solutions of the system? solve by graphing. y = -x^2 -6x - 7 y = 2

I'm confused on this could anyone me and show me what i need to do to solve it.

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.