What is the rate of change that passes through this point (0,0) and (1,-5)

Asmall business produces and sells balls. the fixed costs are $20 and each ball costs $4.32 to produce. each ball sells for $8.32. write the equations for the total cost, c, and the revenue, r, then use the graphing method to determine how many balls must be sold to break even.

At 6 1/2 cents per pound of string beans how much does 7 pounds cost

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