Allen is building birdhouses that require 1/2-ft-long boards. how many piece that are exactly 1/2 ft long can be made from a board that is 8 1/4 ft long?

The swimming pool is open when the high temperature is higher than 20∘c. lainey tried to swim on monday and thursday (which was 33 days later). the pool was open on monday, but it was closed on thursday. the high temperature was 30 ∘c on monday, but decreased at a constant rate in the next 33 days. write an inequality to determine the rate of temperature decrease in degrees celsius per day, d, from monday to thursday.

The table shows the number of hours orlando spent at football practice last week. select the appropriate numbers below to complete the model to find the number of hours orlando spent practicing on tuesday and friday.

Cd is the perpendicular bisector of both xy and st, and cy=20. find xy.