During each week of piano lessons, Malia learns to play 2 new pieces. In all, how many weeks of piano lessons will Malia need before she will be able to play a total of 14 pieces?

Ricardo ran the 400 meter race 3 times his fastest time was 54.3 seconds his slowest time was 56.1 seconds if his average time was 55.0 seconds what was his time for the third race

Factor and solve to find roots x squared -x - 90 =0

Awoman has 14 different shirts: 10 white shirts and 4 red shirts. if she randomly chooses 2 shirts to take with her on vacation, then what is the probability that she will choose two white shirts? show your answer in fraction and percent, round to the nearest whole percent.