How to change 8 21/40 into a decimal

What is the upper quartile of 36,73,28,36,80,50

The fixed and variable cost for three manufacturing plant sites ...

Josie bought a new mirror. The mirror has 5 sides. What is the shape of the mirror? Hexagon B. C. D. Square Pentagon Heptagon 18. The perimeter of a church window is 80 inches.

In 1850, a person sold a house to a lady for $30. If the lady had put the $30 into a bank account paying 4% interest, how much would the investment have been worth in the year 2010 if interest were compounded in the following ways?

125 invitations to 75 invitation

Jane is 3 years older than mary, and mary is twice as old as kay. if kay is x years old, how old is jane?

Which expression is equivalent to 1.7 - 0.5 (0.2x - 1.6) ? A) 2.5 - 0.1x B) 0.9 - 0.1x C) 0.1x - 0.9 D) 0.1x - 2.5

A ray of light strikes a flat block of glass (n = 1.52) of thickness 1.50 cm at an angle of 36.0° with the normal. Trace the light beam through the glass, and find the angles of incidence and refraction at each surface.

A tree 7 ft. tall grows an average of 6in. each year. Which equation models the tree's height h after x years?

Korey is planning to open a comic book store. He has developed the following expense breakdown for set-up and operation for the first year. Korey has $8,500 in savings and $25,000 in inheritance money to use to open his store.