David and amrita had an equal number of marbles. after armita gave 50 marbles to david he had 5 times as many marbles as her. find the total number of marbles they had.

In triangle opq right angled at p op=7cm,oq-pq=1 determine the values of sinq and cosq

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.

Find the common ratio of the sequence. -4, 8, -16, 32, a: -12b: -2c: 12d: -1/-2