Consider the problem − 3 × 3 − 3 − 5 −3×3−3−5 Mark says the answer is 15 but Sam says the answer is -17. Who is correct? Explain to the student with the wrong answer what they did incorrect. Display keyboard shortcuts for Rich Content Editor

The u-drive rent-a-truck company plans to spend $13 million on 320 new vehicles. each commercial van will cost $25 comma 000, each small truck $50 comma 000, and each large truck  $80 comma 000. past experience shows that they need twice as many vans as small trucks. how many of each type of vehicle can they buy?

Can some one me with these questions

Carl's candies has determined that a candy bar measuring 3 inches long has a z-score of +1 and a candy bar measuring 3.75 inches long has a z-score of +2. what is the standard deviation of the length of candy bars produced at carl's candies?