David is installing ceramic tiles on 3⁄4 of the family room floor. He has completed ! " of the job. What part of the floor is now covered?

Which of the following is most likely the next step in the series? a3z, b6y, c9x, d12w, е15v, f18u

The jewelry store is having a sale. necklaces that were regularly priced at $23.50 are on sale for $18.80. what is the percentage of decrease in the price of necklaces?

How do i start to solve? would appreciate a walk-thru! a bird sitting 16ft above the ground in an apple tree dislodges an apple. after how many seconds does the apple land on the ground? (assuming that no branches will interfere with it's fall)