Can someone me? i do not understand. she did not teach us this? ?

Find the height of a square pyramid that has the volume of 32 ft.³ and a base lengthof 4 feet

Which of the following contains a variable?

For problems 29 - 31 the graph of a quadratic function y=ax^2 + bx + c is shown. tell whether the discriminant of ax^2 + bx + c = 0 is positive, negative, or zero.