How many of the 200 total high school students would you expect to be less than68 inches tall?

On a piece of paper graph f(x)=5•(0.4)^x

Determine domain and range, largest open interval, and intervals which function is continuous.

What is the equation of the line that passes through (-3, -1) and has a slope of 2/5 ? put your answer in slope-intercept form. a y= 2/5x+1/5 b y=2/5x-1/5 c y=-2/5x-1/5