a) Sundar bought two calculators for Rs. 1000. He sold one of them at a profit of 10% and other at a loss of 10%. If the selling prices for both calculators are the same, find the cost prices of each calculator. Also find the percentage loss or gain on the whole.​

Ajar of gumballs contains 4 reds, 2 greens, and 6 blues. what is the probability of getting two blues in a row without replacement?

Solve: 3x+y=6 4x-2y=18 show all work !

Abag contains 4 red, 7 blue and 5 yellow marbles. event a is defined as drawing a yellow marble on the first draw and event b is defined as drawing a blue marble on the second draw. if two marbles are drawn from the bag, one after the other and not replaced, what is p(b|a) expressed in simplest form? a. 7/16 b. 7/15 c. 14/16 d. 14/15