In a science lab, a number of rock samples are weighed. If the scientist finds one of the rocks to weigh 3 pounds and this is 49. 3% of the total weight of all of the rocks, what is the weight of all of the rocks? If necessary, round your answer to the nearest tenth

Aboard 60 in. long is cut two parts so that the longer piece is 5 times the shorter. what are the length of the two pieces?

What is the solution to this system of equations? y= 2x - 3.5 x - 2y = -14

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?