A scale model of an airplane has a wingspan of 8 inches (in.). In real life, the same airplane has a wingspan of 32 feet (ft). What is the scale of the model to real life?

The population of a city in 2005 was 18000. By 2010, the city's population had grown to 45,000. Economists have determined that the growth is exponential. If they are correct, what is the projected population for 2015?

Solve the system for (y) x+5y = -4; - x+5y=-16

Jen read 300 pages in her book this week. This was 60 more pages than she read last week. How many pages did she read last week?

What is 1/8 times 8 1/4 times 4 1/2 times 4

The figures are similar. Find x. 9/15 4/x

What is the solution of 5a+12<2 and 5a-12<3

What is the answer to 38-n<8

15 percent of what is 12

Central sub made 27 sandwiches useing 12 pounds of turkey how much turkey per sandwich?

40% of OatyPop cereal boxes contain a prize. Hanna plans to keep buying cereal until she gets a prize.