Mrs. O'Neill has 2 times as many markers as colored pencils. The total number of markers and colored pencils is 18. How many mark does Mrs. O'Neill have?

A mountain peak is 12,200 feet above sea level. The valley below is 218 feet below sea level. How far is it from the peak to the valley?

The length of rectangular field is twice its breadth. If the perimeter of the field is 228, find the dimensions of the field

Choose an equation that would be used to solve 0 = - x2 + 10x - 8 (x + 25) 2 = - 8 (x - 5) 2 = 17 (x - 10) 2 = 25

How can you use models to estimate percent questions?

Write the statement in if-then form. two angles measuring 90 are complementary. select one: a. if two angles measure 90, then two angles measure 90. b. if two angles measure 90, then the angles are complementary. c.

Prove that one of every three consecutive positive integer is divisible by 3

find a rational number that is between 5.2 and 5.5. Explain why it is rational Find an irrational number between 5.2 and 5.5. Explain why it is irrational.

What is the greatest common factor of 9 and 36

Last month, James bought a tree that grows 3 cm each day. It was 5 cm tall when he bought it and now it is 68 cm tall. The equation 5 + 3d - 68 can be used to find the number of days (d) James has owned the plant.

Write 7.41*10^ (4) in standard notation.