Find the value of the expression when x = 4 and y = 6.
8x + 2y + 3

Ineed in figuring out this problem.

Explain how you can show five less than a number using algebraic expression

Arectangle has a perimeter of 20 cm. the length, x cm, of one side of this rectangle is uniformly distributed between 1 cm and 7 cm. find the probability that the length of the longer side of the rectangle is more than 6 cm long.