Plz help with this math problem: -6+9(8-2b)​

Asailor is looking at a kite. if he is looking at the kite at an angle of elevation of 36and the distance from the boat to the point where the kite is directly overhead is 40 feet, how high is the kite?

Noor brought 21 sheets of stickers. she gave 1/3 of a sheet to each of the 45 students at recess. she wants to give teachers 1 1/2 sheets each.

Write the equation for the parabola that has x− intercepts (−2,0) and (4,0) and y− intercept (0,4).