Kevin earned $500 in commissions last month. He had $2800 in total sales last month. What was his commission rate?

Given abcd ac=38 and ae=3x+4 find the value of x

Look at the figure below: triangle abc is a right triangle with angle abc equal to 90 degrees. the length of ac is 5 units and the length of ab is 4 units. d is a point above c. triangle adc is a right triangle with angle dac equal to 90 degrees and dc parallel to ab. what is the length, in units, of segment cd?

How many zeros does this polynomial function, y=(x-8)(x+3)^2