Why do stores offer sales such as buy one, get one at half price or buy two, get one free

Round and estimate 0.9% of 74

Round the following number to the nearest thousand 2385

What is 9g + 4m - 8g

Dominick graphs the equation y = a | x| where a is a positive integer. If Gina multiplies a by - 3, the new graph will become (1) narrower and open downward (2) narrower and open upward (3) wider and open downward (4) wider and open upward

Find the retail price of a shirt that was marked up 75% and that originally cost $33.75?

If f (x) = x+4 and g (x) = 2x-3, find (g-f) (2)

Put these numbers in order, smallest to largest 4.9 9.44 9.4 4.09 4.99

How many people are between 159 cm and 179 cm

What fraction is equivalent to 5.1? is 5.1 a rational number?

Natalie has a choice of three breads, five choices of meats, and four choices of cheese to make a sandwich. how many different sandwiches can she make?