the track team is trying to reduce their time for a relay race. first they reduce by 2.1 minutes. then they are able to reduce the time by 1/10. if their final time is 3.96 minutes, what is their beginning time? show or explain your answer

Find the value of tan theta if sin theta = 12/13 and theta is in quadrant 2

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?

Asmall business produces and sells balls. the fixed costs are $20 and each ball costs $4.32 to produce. each ball sells for $8.32. write the equations for the total cost, c, and the revenue, r, then use the graphing method to determine how many balls must be sold to break even.