if a sells radio to b to have a profit of 10 percent then the same radio is sold to c at 5 percent profit. but c already pays rs. 350 then find the cost price of a​

What is the value with a place of tenths in 907.456 1) 0 2) 6 3) 4 4) 5

Which ahows the graph of the solution set of 6x+4y< 12

The first-serve percentage of a tennis player in a match is normally distributed with a standard deviation of 4.3%. if a sample of 15 random matches of the player is taken, the mean first-serve percentage is found to be 26.4%. what is the margin of error of the sample mean? a. 0.086% b. 0.533% c. 1.11% d. 2.22%