Suppose that x and y vary inversely and that y = 83 when x = 8. Write a function that models the inverse variation and find y when x = 4.

Evaluate log 2 over 3

After the hairdresser Jenny had 27 centimeters cut off her hair how many decimeters of hair did jenny have cut off

Choose yes or no to tell whether each expression is equivalent to - 4/3 p - 2/5 1. - 2/5 - 4/3p 2. 2/5 - 4/3p 3. - 2/5p - 4/3 4. - 4/3 p + (-2/5)

Is 0.1234 rational or irrational

60% of the students in a college class are over 25 years old. Of the remain students, 50% are younger than 21. what percentage of the students are between 21 and 25?

What is 45 over 2 in decimals?

Solve the equations: a (9x-5/2) - (3+2x/3) - (8x-2/4) = 2 b (5x-1/7) + (4x-3/2) - (3-2x/2) = 6 c (8x+7/6) + (3-2x/4) - (5x-2/2) = 32

Approximate the square root of two to the nearest tenth

Annabelle's mom backed one dozen cupcakes Annabelle took 1 third of that to school how many cupcakes did she take

The minimum daily requirement of vitamin C for 14-year-olds is at least 50 mg per day and average sized apple contain 6 mg of vitamin C how many apples would a person have to eat each day to satisfy this requirement