What is the experimental probability of rolling a 2 or a 4?

Tom had a total of $220 and he spent $35 on a basketball ticket . what percent of his money did he have left?

Delbert keeps track of total of the total number of points he earns on homework assignments, each of which is worth 60 points. at the end of the semester he has 810 points. write an equation for delbert’s average homework score a in terms of the number of assignments n.

The length of a rectangle plus its width is 24 cm. the area is 143 square cm. what are the length and width of the rectangle?