How do you find the decimal for 8 21/40?

The one to one functions G and H are defined as follow G={ (-1,1), (3,8), (4,5) (8,-4) } H (x) = 2x+3 find the following g^-1 (8) = h^-1 (x) = (hoh^-1) (-1) =

The River Ridge High School auditorium has exactly 27 rows of seats. The rows are labeled, in order, from the front of the auditorium to the back from A through AA. There are 9 seats in the row A.

From midnight to 1:00am in January the temperature dropped 19 F. After drooped, the outside temp was - 20 f. What was the temperature a midnight?

The area of the rectangle is 4000 square meters. What is the perimeter of the track? Use 3.14 for pi.

1/2+7/8 in its simplest form

Find the unit rate with the second given unit in the denominator. 1090 heartbeats in 15 min

Emma travels 660 miles to her grandmothers house in Florida. It takes her 11 hours to get there. What is her average speed?

The Venn diagram represents all students attending Pythagorean High School. Circle A represents all students that are enrolled in extracurricular activities. Circle B represents all female students.

Coby needs to know the area and perimeter of his farm property. The length of his property is 1/12 mile and the width is 3/8 mile. What is the area? What is the perimeter?

Approximately how much of a degree is 10 seconds?