Theres to many letters i dont understand

Write a numerical expression that satisfies all of the following conditions. 1.)the only number used in the expression is 5 2.)at least one exponent other than 1 is used 3.)when the expression is evaluated, the answer is greater than 40 and less than 50

Although changes result from business transactions, the equality of the fundamental bookkeeping equation must remain. t/f

What term best describes a line ans a point that lie in the same plane