Hannah serves tables at a restaurant. the first table she served on a monday paid her $79.35. the bill amount was $69.00, and the rest was hannah's tip. what percentage of the bill was hannah tipped?

Aman steps out of a plane at a height of 4,000m above the ground falls 2,000m very quickly and then opens his parachute and slowly falls the remaining 2000m to the ground what height above the ground would be the best choice for a reference point

What is the point of inflection for the function f(x)=2cos4x on the interval (0, pi/2)

Which graph correctly represents the equation  y=−4x−3? guys me iam not trying to fail summer school and will offer 40 points for who ever me with the next 3 problems and will give brainlest