Daisy measured some plants the table gives some information about the hieght

Determine which expressions represent real numbers and which expressions represent complex number. asaaap! plis!

Use the quadratic formula to solve the equation. if necessary, round to the nearest hundredth. x^2 - 23 = 10x a. -1.93, 11.93 b. 1.93, -11.93 c. 1.93, 11.93 d. -1.93, -11.93

1: 4 if the wew 35 surfboards at the beach how many were short boards?