Lorena bought 10 packs of styrofoam cups for the graduation dance. A pack of fifty 12 ounce cups cost $1.80 and a pack of fifty 16 ounce cups costs $2.40. Lorena paid a total of $21.60 excluding tax. How many packs of each size cup did she buy?

This race was first held in 1953 on august 16th. every decade the race finishes with a festival. how many years is this?

Two planes leave an airport at the same time, one flying east, the other flying west. the eastbound plane travels 20 mph slower. they are 1600 mi apart after 2 hr. find the speed of each plane.

Ataxi company charges $2.25 for the first mile and then $0.20 per mile for each additional mile, or f = $2.25 + $0.20(m - 1) where f is the fare and m is the number of miles. if juan's taxi fare was $6.05, how many miles did he travel in the taxi? if juan's taxi fare was 7.65, how many miles did he travel in taxi