At Elmwood Middle School there are 4 teachers for every 68 students. There are 425 students enrolled at the school. How many teachers are needed?

Tom is 77 inches tall and shrinking at a rate of 0.75% every eyar. How tall will he be after 15 years? Whats the exponential function

On Thursday, a local hamburger shop sold a combined total of 282 hamburgers and cheeseburgers. The number of cheeseburgers sold was two times the number of hamburgers sold. How many hamburgers were sold on Tuesday?

If you borrow $491 for one year at an interest rate of 3%, how much interest will you pay?

Simplify the expression 6 + (4h + 3).

I have 3 meters and 60 centimeters of string. If a short piece of string measures 30cm. How many short pieces of string can I make?

If 4a + b = 12 than a =

If a zero is _, then the graph of its function only touches the x-axis at that zero. If a zero is _, then the graph of its function crosses the x-axis at that zero.

Where are all the lines of symmetry in a square?

How is he graph of y=-2x^2-5 different from the graph of y=-2x^2

Which statement shows the associative property of addition? A. If m + 3 = 18, then 18 = m + 3 B. (u + 7) + 13 = u + (7 + 13) C. 21 + 2y = 2y + 21 D. 3 · (5 · x) = (3 · 5) · x