An umbrella is made up of 6 isosceles traingular pieces of cloths . The measurement of the base of each triangular piece is 28 cm and two equal sides are 50 cm each . It the rate of the cost of the cloth is rs 0.50 , find the cost of the clothes required to make the umbrella.

Jack did 3/5 of all problems on his weekend homework before sunday. on sunday he solved 1/3 of what was left and the last 4 problems. how many problems were assigned for the weekend?

Abag contains 3 red marbles, 2 blue marbles, and 2 green marbles. one marble is picked, then another marble. assume that the selections are made with replacement. a) find the probability of picking two red marbles with replacement. b) find the probability of picking a red marble and a blue marble. assume the selections are made without replacement. c) find the probability of picking two red marbles without replacement. d) find the probability of picking a red marble and a blue marble without replacement.

If you have 12 feet of string and you cut it into equal length of 5 inches each how much string will be left