Provide the null hypothesis for the following research hypothesis in words and symbols: Juvenile offenders who complete drug treatment spend fewer number of days clean before relapse than adult offenders who complete drug treatment. If you reject your null hypothesis in Q#1, what can you conclude?

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?

Find the distance between c and d on the number line c=3 and d=11

Afew weeks ago, vera bought 5 apples from her local farmers' market. today, she bought 4 apples. what is the percent of decrease in the number of apples bought?