William has a lemonade stand. It costs him $0.30 to make 3 cups of lemonade. Which of the following represents the rate of change of his cost with respect to the dozens of cups of lemonade he makes?

p ÷ r = tan(x)

step-by-step explanation:

given that there is a figure below shows a right triangle: a right triangle is shown with hypotenuse equal to q units and the length of the legs equal to p units and r units.

graph is missing so i will create the graph as per given information.

the angle between the legs having lengths p units and q units is y degrees. the angle between the legs having lengths r units and q units is x degrees.

now we need to find about what is p ÷ r equal to.

so we can use trigonometric ratio tan(x)=[altitude]/[base] to find the value of p ÷ r, because p is the altitude and r is the base.

p ÷ r=tan(x)

hence final answer is p ÷ r=tan(x).

the photograph is photographer and- in the process- ourselves.

step-by-step explanation:

simple 80 pieces in 1 sercing so 80*47=3760+20=3780