Arectangular box with an open top has a length of x feet, a width of y feet, and a height of z feet. it costs $4.20 per square foot to build the base and $0.75 per square foot to build the sides. write the cost c ofconstructing the box as a function of x, y, and z.

Step-by-step explanation:

We are given the following information in the question:

A rectangular box has a length of x feet, a width of y feet, and a height of z feet.

Area of base =

Cost of building base = $4.20 per square foot

Total cost of building base =

Area of 4 walls =

Cost of building base = $0.75 per square foot

Total cost of building 4 walls =

Total cost of building box =

21

step-by-step explanation:

answer: they are supplementary angles

step-by-step explanation: 161+19=180. supplementary angles equal 180 degrees