(Sec. 2.4) A department store sells sport shirts in three sizes (small, medium, large), three patterns (plaid, print, stripe) and two sleeve lengths (long, short). The tables below give the proportions of shirts sold in the various category combinations.

Is it possible that P(AB)=P(A)? Explain.

:: 6.98 Translate to a proportion: 27 is 36% of what number?

Engine pistons and cylinder heads are made of an aluminum casting alloy that contains 4% silicon, 1.5% magnesium, and 2% nickel. Round the answers to the nearest tenth kilogram. a. How many kilograms of silicon are needed to produce 575 kilograms of alloy? b. How many kilograms of magnesium are needed to produce 575 kilograms of alloy? c. How many kilograms of nickel are needed to produce 575 kilograms of alloy?

In a competition of 50 professional ballroom dancers, 22 compete in the fox-trot competition, 18 compete in the tango competition. and 6compete in both the fox-trot and tango competitions. How many dancers compete in the foxtrot or tango competitions?