The sum of the digits in a two-digit number is 12. The tens digit is 2 more than the
ones digit. Write and solve a system of
linear equations to find the number. Let x
répresent the tens digit, and let y represent
the ones digit.

How many different ways can you make change for $.50 using only nickels,dimes, and quarters?

Which exponential function has an initial value of 2? f(x) = 2(3x) f(x) = 3(2x)

The height of a birch tree, f(x), in inches, after x months is shown in the graph below. how much does the birch tree grow per month, and what will be the height of the birch tree after 10 months? a. the birch tree grows 1 inch per month. the height of the birch tree will be 16 inches after 10 months. b. the birch tree grows 2 inches per month. the height of the birch tree will be 26 inches after 10 months. c. the birch tree grows 3 inches per month. the height of the birch tree will be 36 inches after 10 months. d. the birch tree grows 2 inches per month. the height of the birch tree will be 24 inches after 10 months.