A boat traveled 300 miles downstream and back. The trip downstream took 10 hours. The trip back took 30 hours. What is the speed of the boat in still water? What is the speed of the current?

A museum worker randomly displays 5 historical writings in a row. What is the probability that the worker lines them up from the oldest to the most recent from left to right?

Simplify these expressions. a. 2r + 3 + 4r b. 8 + 3d + d c. mn + (-3mn) + 6 d. 10s + (-10) + (-4s)

Find the vertex of y=-x^2+6x-12

Given a mortgage of 48,000 for 15 years with a rate if 11%, what are the total finance charges

The perimeter of a rectangle is 20 m and it's area is 24 sq. m. Find its dimensions A 4m and 8m B 4m and 6m C 6m and 8m D 12m and 8m

A carpenter is putting a skylight in a roof. If the roof measures 10x + 9 by 7x + 7 and the skylight measures x + 5 by 3x + 3, what is the area of the remaining roof after the skylight is built?

What does principle amount mean

If z varies directly as x and z=30 when x=8 find z when x=4

Which measurement statement is correct? A. There are 2 cups in a pint B. There are pints in a cup C. There are 4 quarts in a pint D. There are 4 pints in quart

What is the surface are of a storage b