Find the y-intercept of the line on the graph. write as fraction

How many real and imaginary solutions does the equation x^2-3x=-2x-7 have?

What is the slope simplify your answer and write it as a proper fraction, improper fraction, or integer

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? *