The owner of a fitness center conducted a survey using 20 people at the center, selected at random each person was given 30 seconds to do as many push ups as possible and 30 seconds to do as many sit ups as possible the data is shown in the graph

she played for 18.75 hours.

step-by-step explanation:

if she played 2/4 of a hour on tuesday. and there is 60 minutes in an hour and 60 divided by 4 is 7.5. and she played 2/4 of an hour on thursday then again 60 divided by 4 is 7.5, you add 7.5+7.5=56.25. now you have to do 1/4 of an hour, it equals 3.75. now you have to add them all up. 3.75+7.5+7.5=18.75

i hope this and i hope you get it right. it took me a while to get this done for you. : )

the answer is here: : )

:

the solution is 12x-6y

y=20x

: )

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