Poe company is considering the purchase of new equipment costing $84,500. the projected annual cash inflows are $34700, to be received at the end of each year. the machine has a
useful life of 4 years and no salvage value. poe requires a 10% return on its investments. the present value of $1 and present value of an annuity of s1 for different periods is presented
below. compute the net present value of the machine
periods
present value
of $1 at 10%
0.9991
0.8264
0.7513
8.6830
present value of an
annuity of $1 at 10%
0.9991
1.7355
2.4869
3.1699

It says factor each expression completely 8y+48

Donald has x twenty-dollar bills and 11 ten-dollar bill. how much money does donald have? write your answer as an expression.

Submarines control how much they float or sink in the ocean by changing the volume of air and water contained in large ballast tanks. when the tanks are completely full of water, the submarine increases its overall mass and sinks down to the bottom. when the tanks are completely full of air, the submarine reduces its overall mass and floats to the surface. depending on the density of the seawater surrounding the submarine, it will pump seawater in or out of the tanks in order to achieve the same overall density as the sea water and float neutrally in the water. the volume of the submarine never changes. when the tanks are completely full of water, a submarine with a volume of 7.8\times10^3\text{ m}^37.8×10 3 m 3 7, point, 8, times, 10, start superscript, 3, end superscript, space, m, start superscript, 3, end superscript has a total mass of 8\times10^6\text{ kg}8×10 6 kg8, times, 10, start superscript, 6, end superscript, space, k, g. the density of the seawater is 10^3\text{ kg/m}^310 3 kg/m 3 10, start superscript, 3, end superscript, space, k, g, slash, m, start superscript, 3, end superscript. to make that submarine float neutrally, and neither float nor sink in the ocean, what volume of water does that submarine need to subtract from its tanks?