Last year producing one unit (then worth $390) required 4 hours of labor ($24 per hour) and $60 worth of overhead.[..]

twice the difference of a number and 9 is equal to three times the sum of the number and 7

The startup division made 80% of 1/2 of the established division. The startup division’s growth was 1/3 greater than[..]

jason willians bought each of his five nieces a gifgt either a dvd of the twilight saga new moon or the cd[..]

Pure acid is to be added to a 10% acid solution to obtain 90L of 50% solution. What amounts of each should be used?

A square plywood platform has a perimeter which is 7 times the length of a side, decreased by 18. Find the length of[..]

ten divided by the difference of a number and 2 minus 9 divided by a number plus 2, equals 8 times the reciprocal of[..]

two airplanes take off at approximately the same time, but fly in two different directions. one goes west at 450[..]

two airplanes take off at approximately the same time, but fly in two different directions. one goes west at 450[..]

Each day the number of births in the world is 84 thousand less than three times the number of deaths. If a[..]