Marta placed 4 marbles in each of 3 bags. then she placed 3 marbles in each of 4 bags . she noticed that both groups had 12 marbles . which property of multiplication does this represent?

associative property of multiplication
commutative property of multiplication
identity property of multiplication
zero property of multiplication

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.

The party planning committee has to determine the number of tables needed for an upcoming event. if a square table can fit 8 people and a round table can fit 6 people, the equation 150 = 8x + 6y represents the number of each type of table needed for 150 people.

Why is causation so much more difficult to prove than correlation?