An equation of the line of best fit for a data set is y=0.23x+6.72. Describe what happens when each y-value in the data set increases by 3. Would the slope or y-intercept increase or decrease?

256π units²   (answer b)

step-by-step explanation:

the formula for the surface area of a sphere of radius r

is             a = 4πr²

and so, if r = 8 units, then the surface area is:

a = 4π(8 units)² = 256π units²   (answer b)

d? maybe

step-by-step explanation: