Which expression is eqivalent to -36-8?

Aline has a slope of 1/4 and passes through point (0.4,-1/2). what is the value of the y-intercept?

Afactory adds 3 red drops and 2 blue drops of coloring to white paint to make each pint of purple paint. the factory will make 50 gallons of the purple paint. how many drops of red and blue coloring will the factory need in the 50 gallon batch of purple paint.

Aboat costs 19200 and decreases in value by 12% per year. how much will it cost in 5 years