Jen determined the masses of 7 rocks. she recorded he mass of 6f each rock on the line plot below. on the chart there is 1/4= 2 x's 2/4= 3x's 3/4 2'xs 1=0 x's what is the total mass, in kilograms, of the 7 rocks?

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The swimming pool is open when the high temperature is higher than 20∘c. lainey tried to swim on monday and thursday (which was 33 days later). the pool was open on monday, but it was closed on thursday. the high temperature was 30 ∘c on monday, but decreased at a constant rate in the next 33 days. write an inequality to determine the rate of temperature decrease in degrees celsius per day, d, from monday to thursday.

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