A teacher has 21 red pens. If the ratio of red pens to blue pens she owned was 3:1, how many pens did she have total?

If ABC is rotated 90° clockwise about the origin what will be the new coordinates of vertex B?

Is 4.05 greater than 4.2

Which shows another way to write 6%?

A wooden cube of mahogany has a side length of 8 cm and a mass of 400 g. What is the density of the cube? Enter your answer in the box. Round to the nearest hundredth.

What is the diameter of a circle with the circumference of 18 feet

The inequality x < 9 or x ≥ 14 can be used to represent the hourly wage, x, of each employee at a store. Which are possible values for x? Select two options.

An integer subtracted from an integer is an integer always, sometimes, never true

Xy+yz=10 solve for y

Two trains leave the station at the same time, one heading west and the other east. The westbound train travels 18 miles per hour faster than the eastbound train.

Enguun earns $17 dollars per hour tutoring student-athletes at Brooklyn University a. If Enguun tutored for 19.5 hours last month, how much money did she earn last month?