Find the number of possible choices for a 2-digit number that is greater than 19. Then find the number of possible choices for a 4-digit Personal Identification Number (PIN) if the digits cannot be repeated.

X (X+3) = 0. Find the value of X (there are two).

If two sides of a triangle are of measures 15 and 28, what is the range of possible values for the third side x?

Determine the direction that this parabola opens y=x^2+2x+8 up or down

Write the example about adding and subtracting decimals

4x-7y=10 y=x-7 using the substitution method

Simplify. 2567 · 162

If 3 apples and 4 bananas cost 1.37 total and 5 apples and 7 bananas cost 2.36 total what is the total cost of 1 Apple and 1 banana?

A model of a tractor is shaped like a rectangle prism and has a width of 3in and the length 11 and the height 4 the scale of the model is 1: 33. How many times the volume of the model is the volume of the actual tractor

What is 5 raised to the 5th power?

Over a two-hour time period, a snail moved 72 inches. How far is this in yards?