Please help if you know -numbers equations

What are the solutions of the system? solve by graphing. y = x^2 + 3x + 2 y = 2x + 2

Ameteorologist is studying the monthly rainfall in a section of the brazilian rainforest. she recorded the monthly rainfall, in inches, for last year. they were: 10.4, 10.3, 11.7, 11.1, 8.0, 4.4, 2.6, 1.8, 2.5, 4.4, 7.3, 9.5 fill in the missing values in the formula. what is the variance?

Ineed ! i can’t figure out this graph