Which set of numbers is the most reasonable to describe the number of desks in a classroom?
integers
irrational numbers
whole numbers
rational numbers

In terms of x, find an expression that represents the area of the shaded region. the outer square has side lengths of (x+5) and the inner square has side lengths of (x-2), as shown. area: a1 x + a2 square units submit

Evaluate 4(x - 3) + 5x - x2 for x = 2.

Triangles cde and nop are similar. the perimeter of smaller triangle cde is 133. the length of two corresponding sides on the triangles are 53 and 212. what is the perimeter of nop?