Given f(x)=-2x and g(x)=4x-8, find h(x)=f(x)+g(x)

Aramp rises 4 feet over a distance of 10 feet. what is the length of the ramp?

The westins and the shermans live in the same city and pay the same sales tax rate, and both families made $14,000 in taxable purchases last year. if the westins made $86,000 and the shermans made $33,000 last year, is the sales tax in their city an example of a regressive tax? yes, because the westins and the shermans both paid the same sales tax rate. b. no, because the shermans paid a higher percentage of their income in sales tax than the westins did. c. no, because the westins and the shermans both paid the same sales tax rate. d. yes, because the shermans paid a higher percentage of their income in sales tax than the westins did.

I’m confused because i this angle is less than 180 degrees but more than 90 degrees am i just totally wrong. i don’t know i’m confused. plz explain. thx