Question

Help me please because I don’t get it

Answer 1

For #3 - #6, everything is simply just dividing.

#3 3 strikes per inning

#4 9 points per minute

#5 30 beats per 20 seconds = 1.5 beats per second
      90 beats per 60 seconds =  1.5 beats per second
      The rates are equivalent.

#6 15 pages in 20 minutes = 0.75 pages per minute
      10 pages in 15 minutes = 0.666666666667
      The rates are NOT equivalent.

For #7, all you have to do is multiply.

#7 40,000 gallons per second
     1 minute = 60 seconds
     40,000 * 60 = 2,400,000
     The dam releases 2,400,000 gallons per minute.