If a couple invests $5000 in an account that earns a 3% interest rate, how long will they need to invest it to earn $1200 in interest?

Ineed solving this problem h/8=-25 solve for h idk how to this can someone show me and also give an answer you

Plz need answer now will mark which situations represent linear functions? check all that apply. a)the temperature rises and falls over the course of a day. temperature is a function of time. b)a baseball is hit into the outfield. the height of the ball is a function of time. c)a car goes 55 mph on the highway. distance is a function of time. d)a child grew 2 inches this year and 1 inch last year. height is a function of time. e)a movie director makes 2 movies per year. the number of movies is a function of the years.

Evaluate cos2θ for cosθ = square root of 3/2