Who was ninty?

What term describes an intersection between two finite planes? What is the area of Pamplie? What is 90 degrees Celsius in fereinheit? Why does squashing the root tip between two microscope slides? What is 260 as a fraction? What is the derivation of the formula for surface area and volume of a cylinder? What is a hecatomyriagon? 13 times by 4? Does a comma go before and after MD? What is the maximum area of a rectangle that can be made with a perimeter of 68 inches? How do you measure the angle of deflection of beta particles? Who invented the cartesian plane? How do we know if a number is divisible by 3? How many thousandths are in 1 kilometer? Do you need to put in anything in the cc box? How many kilometres are there in 4 miles? How much water in 200ft of 1 inch pipe? What percent is 126 of 150? What is x squared minus three x plus two? Effective problem solving assists the acquisition community in making good business decisions. Problem solving is defined as?