Nicholas bought three business related books. his total bill was $150. if one book cost him 50% more than the other two books combined what was the price of this more expensive book?

90 - because you take  30 + 30 = 60 then you multiply it by .5 to ad the 50% more, then you add that to the original 60 to get the price of the more expensive book. you can check you work by adding them together 30+30+90=150.

The skating rink rented 872 pairs of skates during april and may.why? : if the skating rink rented three times the pair of skates in april during may, they rented 654 skates. 218 x 3 = 654then, if they want to know how many they rented during both april and may, then you just add 654 (may) and 218 (april) to give you 872 pairs of skates for both months.654 + 218 = 872hope this !

Look, when you want to do something like put it like x^2. x2 could mean x² or x₂. so to clear confusion, know the notation. to find the product multiply the x's and you get -8x and the y's and you get 6y. since it's all being multiplied it is just -8x6y, or answer a. although the better answer is -48xy(combining -8 and 6) because you should multiply constants whenever you can.