Tamara find the sum of two number cubes rolled at the same time. The chart below shows all possible Sums from the 36 possible combinations on rolling two number cubes. How many times should Tamara expect the sum of the two cubes be equal to 9 if she rolls the two number cubes 252 times?

incomplete question. how do you expect anyone to you when you do not post the question in its entirety?

phosphate, calcium ion, chloride ion, neon atom

step-by-step explanation:

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step-by-step explanation:

if the four friends split the cost, p, of the pizza evenly, then each friend pays one-fourth of the cost of the pizza.

the expression is   or