Katrina is asked to simplify the expression -3a-4b- 2(5a- 7b) She writes;-3a-4b-2(5a-7b) =-3a-4b- 10a+14b
Which property allows her to do this?

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

Aramp rises 4 feet over a distance of 10 feet. what is the length of the ramp?

You are choosing between two health clubs. club a offers membership for a fee of $ 28 plus a monthly fee of $ 20. club b offers membership for a fee of $ 20 plus a monthly fee of $ 22. after how many months will the total cost of each health club be the same? what will be the total cost for each club? in __ months the total cost of each health club will be the same.