6300 and 530 what is the value of 3?

Lisa has three classes that each last 50 minutes. what is the total number of minutes of the three classes

You paid 28.00 for 8 gallons of gasoline. how much would you pay for 15 gallons of gasoline?

Will mark ! (10 points also! ) if x varies inversely with y and x =6 when equals y= 10, find y when x=8 a. y=4.8 b. y=7.5 c. y=40/3 d. y=4/15