What is the coefficient of -10n+10-10

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

What is the measure of ac? 5 units 13 units 26 units 39 units

If f(x)= sqrt4x+9+2, which inequality can be used to find the domain of f(x)?