Find the missing value when given the modulus. |48 + bi| =50 (in the first quadrant)

What is the equation of this graphed line? enter your answer in slope-intercept form in the box.

It says factor each expression completely 8y+48

Abicycle training wheel has a radius of 3 inches. the bicycle wheel has a radius of 10 inches.approximately how much smaller, in square inches and rounded to the nearest hundredth, is the area of the training wheel than the area of the regular wheel? *