On my tourist map of Quebec, the distance between the dots representing Montreal and Quebec City is 10 cm. If the scale of the map is 4/9 mm = 1 km, then how far apart are Montreal and Quebec City? (Note that 10 mm = 1 cm)

You give a $4 tip for a meal that cost $22. approximately what percent of the bill was your tip?

Is the product of two rational numbers irrational or rational? first, make a hypothesis by multiplying two rational numbers. then, use variables such as x=a/b and y=c/d and the closure property of integers to prove your hypothesis.

If it 8 inch candle burns at 7/10 inch per hour and a 6 inch candle burns at 1/5 inch per hour after how many hours would both candles be the same height