15. Write an equation in Slope-intercept form for the line that passes through the point (5,-1) and is perpendicular to the equation y = 4x - 7

Why did the ice arena get so hot after the big game (this is math related google it to find the paper

Jabari is power washing houses for a summer job. for every job, he charges an initial fee plus $30 for each hour of work. his total fee for a 4 -hour job, for instance, is $170 . jabari's total fee,f, for a single job is a function of the number,t, of hours it takes him to complete the job. write the function's formula.

In the diagram, ab is tangent to c, ab = 4 inches, and ad = 2 inches. find the radius of the circle.