Do bathroom scales tend to underestimate a person’s true weight? a 150 lb test weight was placed on each of 50 bathroom scales. the readings on 29 of the scales were too light, and the readings on the other 21 were too heavy. can you conclude that more than half of bathroom scales underestimate weight?

Four individuals pool money together to start a new business and agree to split the profits equally. n invests $6,000, x invests $2,000, y invests $8,000 and z invests $4,000. if the profits for the first month were $100,000, y receives than if the profits were divided in proportion to how much they invested.

One of every 20 customers reports poor customer service on your company’s customer satisfaction survey. you have just created a new process that should cut the number of poor customer service complaints in half. what percentage of customers would you expect to report poor service after this process is implemented? 1.) 5% 2.) 10% 3.) 2% 4.) 2.5%

1) prove that 731^3−631^3 is divisible by 100 2) prove that 99^3−74^3 is divisible by 25