Identify the variation as direct, inverse, joint or combined.

xy = c

Cody is twice as old as Evan and seven years ago the sum of their age was 7. find the age of each boy now

Is 0.15 - 0.75p equal to - 3 (0.15 - 0.2 + 0.25p) ?

63 as a fraction in simplest form.

At the book fair 34 books were sold in the first 2.5 hours. At this rate, how many books will be sold in the 10 hours of the book fair?

The perimeter of a rectangle of 150 feet. The length of the rectangle is twice the width. Find the length and width of the rectangle

Mr. Smith has 12 congruent boxes shaped like rectangular prisms in his office. If the length is 25 inches, the height is 2 feet, and the volume is 9,000 cubic inches, what would the width of one of his boxes be?

Solve for q. -15 - 18q = - 20q + 15 q =

Represent the proportional relationship described with an equation where d equals dogs and c equals cats: three dogs for each cat

Ou can draw a quadrilateral with two sets of parallel lines and no right angles. a. True b. False

There are 8 candidates for student government: Hal, Mary, Ann, Frank, Beth, John, Emily, and Tom. The three candidates that receive the highest number of votes become candidates for a runoff election. How many 3-candidate combinations are possible?