Three brothers, justin, jared, and jonathan decided to buy a present for their mom's birthday. justin gave decided to spend 1/4 of his savings on the present, jared said he will contribute 1/3 of his money, and jonathan was willing to put in 2/5 of all he had. each brother invested exactly the same amount of money and they bought a vase that costed $33.00. how much money did each boy have before the purchase?

0if x and y vary inversely and y=6 as x=7, what is the constant of variation?

Acircle has a circumference of 7.850 units. what is its radius?

The number of chocolate chips in a bag of chocolate chip cookies is approximately normally distributed with a mean of 12611261 chips and a standard deviation of 118118 chips. (a) determine the 2626th percentile for the number of chocolate chips in a bag. (b) determine the number of chocolate chips in a bag that make up the middle 9696% of bags. (c) what is the interquartile range of the number of chocolate chips in a bag of chocolate chip cookies?