Aswimming pool is open for 7 1/2 hours during a day. the pool keeps one lifeguard on duty at a time, and each lifeguard's shift is 1 1/2 hours long. how many shifts are there per day?

Step-by-step explanation:

To find out how many shifts there are per day, divide the total number of hours during the day the pool is open by the duration of each lifeguard's shift.

so

Convert mixed number to an improper fraction first

x = 12

y = 15

step-by-step explanation:

i would need to see the dot plot : )