Jon's grades from reading class are shown below.

78, 83, 87, 72, 91, 85, 93, 79, 100

What is the range of Jon's grades from reading class?

Which math sentence can be used to determine if the triangle is a right triangle?

If sr is 4.5cm and tr is 3cm, what is the measure in degrees of angle s?

Four individuals pool money together to start a new business and agree to split the profits equally. n invests $6,000, x invests $2,000, y invests $8,000 and z invests $4,000. if the profits for the first month were $100,000, y receives than if the profits were divided in proportion to how much they invested.