Kristina collected some toys for charity. she donated 3/4 of the toys to charity a. than she donated 1/4 of the remaining toys to charity b. after the two donations kristina had 9 toys left . how many did she have originally?

There is a spinner with 14 equal areas, numbered 1 through 14. if the spinner is spun one time, what is the probability that the result is a multiple of 2 or a multiple of 5?

Find an equation of the line perpendicular to the graph of 28x-7y=9 that passes through the point at (4,1)

In a small section of a stadium there are 40 spectators watching a game between the cook islands and fiji. they all support at least one of the two teams. 25 spectators support the cook islands and 16 of these support both teams. how many support only fiji?