Luis left home with $5.50 in his wallet. he spent $3. 25 on drinks and $2. 00 on a magazine. later his friend repaid him $3. 50 that he had borrowed the previous day. how much did luis have in his wallet then?

What is the upper quartile in the box plot?

If the ratio of sum of the first m and n terms of an ap is m2 : n2 , show that the ratio of its mth and nth terms is (2m − 1) : (2n − 1).

At the county fair, the baxter family bought 6 hot dogs and 4 juice drinks for $12.90. the farley family bought 3 hot dogs and 4 juice drinks for $8.55. find the price of a hot dog and the price of a juice drink.