Finish the pattern

18, 21, _, 24, _, 30

The expression (m^2/m^1/3) ^1/2 is equivalent to

Jesus paid $2.50 for 5lbs for candy. what is the cost per lb?

Cassie has 1/2 pound of sugar in her cabinet her cake recipe calls for 2/10 of a pound of sugar how many cakes can she make

Jason was asked 40 questions on a quiz show. He answered 85% of the questions correctly. how many did he answered correctly

Which number can you multiply by any irrational number to obtain an irrational number?

Two sides of a triangle are 15 mm and 10 mm. The perimeter of the triangle is 35 mm. What's the third side?

Sheila has five times as many markers as day together they have 18 markers how many markers does Sheila have

Flying against the wind, an airplane travels kilometers in hours. Flying with the wind, the same plane travels kilometers in hours. What is the rate of the plane in still air and what is the rate of the wind

In the continental United States, the ratio of states that border an ocean is 7:9. How many of the states border an ocean?

The angles with measures x and 4x are complementary angles. which is the value of x?