Bob paid $1210 for five tables and seven chairs for his company. Each table cost three times as much as each chair. If Ann brought 8 such tables and 4 such chairs, how much money will she have to pay?

The number of revolutions of two pulleys is inversely proportional to their diameters. if a 24-inch diameter pulley making 400 revolutions per minute is belted to an 8-inch diameter pulley, find the number of revolutions per minute of the smaller pulley.

Joe has some money in his bank account he deposits 45$ write an expression that represents the amount of money in joe's account

The distance between two points is 6.5cm and scale of map is 1: 1000 what's the distance between the two points