Please help me

Which statement best describes a square? a. a special rectangle that has four right angles b. a special trapezoid that has four sides of equal length c. a special rectangle that has four sides of equal length d. a special trapezoid that has four right angles

How many zeros does the function f(x)=4x3-x2+1 have

For each proportion find the unknown number x 1/5/8=×/15