Sara found 58 seashells on the beach, she gave dan some of her seashells. she has 13 seashells left. how many seashells did she give to dan?

What is always true when two whole numbers are subtracted?

How many heads would you expect if you flipped a coin twice? first, fill in the table below with the correct probabilities. hint: the sample space for flipping a coin twice is {hh, ht, th, tt}. a = b = c = f

Jessica is organizing a guided tour of the rain forest. the average profit per person that the touring company makes is given by the rational expression 18x+35/x, where x is the number of people going on the tour. what does the numerator of this rational expression represents?