Worth 50 points What is the equation of a line that passes through (7, 8) and has a slope of -3?

A.
`y = -3x + 29`

B.
`y = 3x + 13`

C.
`y = (1)/(3)x− 29`

D.
`y = -(1)/(3)x− 13`

Using the quadratic formula find the zeros of the given polynomial -5x^2+3x-11

Suppose that one doll house uses the 1 inch scale, meaning that 1 inch on the doll house corresponds to 1/2 foot for life-sized objects. if the doll house is 108 inches wide, what is the width of the full-sized house that it's modeled after? in inches and feet.

We just started the introduction into circles and i have no idea how to do this.