X/3 — 4 = (-20) ? can someone me find the answer

8000 + 8800 + 8000 + 8 million + 80 trillion + another a katrillion equals

Describe the 2 algebraic methods you can use to find the zeros of the function f(t)=-16t^2+400.

Asquare has a side that measures 11 units. what is the area of a circle with a circumference that equals the perimeter of the square? use 3.14 for π, and round your answer to the nearest hundredth. 1519.76 units2 379.94 units2 616.56 units2 154.14 units2