42=7r I am also Very confused with this one I am not very smart.

A student has some $1 and $5 bills in his wallet. he has a total of 11 bills that are worth $35. how many of each type of bill does he have?

What is the difference between 864 and - 301

Jeremy is buying a new bicycle. For the style he likes best, the bicycle shop sells 26-inch and 29-inch frames in blue, red, and black. Create a table to represent the sample space. What is the probability that he selects a black 29-inch bicycle?

A gardener plants two types of trees in a park:Type is five feet tall and grows at a rate of 12 inches per year. Type is three feet tall and grows at a rate of 15 inches per year.

What is a linear equation minus a

The probability of getting disease X (event A) is 0.65, and the probability of getting disease Y (event B) is 0.76. The probability of getting both disease X and disease Y is 0.494. Are events A and B dependent or independent?

the load capacity of a certain washing machine is 12 pounds. what is the approximate load capacity of the same washing machine, in kilograms?

a play court on the school playground is shaped like a square joined by a semicircle. the perimeter around the entire play court is 182.8 ft, and 62.8 ft. of the perimeter comes from the semicircle.

7x^2-65x+18 all I know is that it's gonna be an answer that looks like (7x-?) (x-?)

How do you solve the equation x=4y-2