If a triangle has a 90 degree angle and a 68 degree angle, what is the third angles degree?

Aprojectile is thrown upward so that its distance above the ground after t seconds is given by the function h(t) = -16t2 + 704t. after how many seconds does the projectile take to reach its maximum height?

The difference of two numbers is 40. find the numbers if 0.3 parts of one number is equal to 37.5% of the other one.

In which direction does the left side of the graph of this function point? f(x) = 3x3 - x2 + 4x - 2