7calculators cost $125.00 what’s the rate and unit rate?

Find the zero function by factoring (try to show work) h(x)=-x^2-6x-9

Three times the sum of a number and seven is negative thirty-six. what is the number?

Ahovercraft takes off from a platform. its height (in meters), xx seconds after takeoff, is modeled by: h(x)=-2x^2+20x+48h(x)=−2x 2 +20x+48 what is the maximum height that the hovercraft will reach?