SAT PREP: Lesson 3 rates and ratios

After spending 5/12 of his salary, a man has $140 left.  What is his salary, in dollars?

If a kg = 2.2 lb, which is the best approximation of the number of kg in 1 lb?

A tree grows 5 ft in n years, what is the average rate in inches at which the tree grew?

On a map, 3/4 inch rep one mile.  What distance in mile is represented by 1 3/4 inches?

If a car travels 1/100 of a kilometer each second, how many kilometers does it travel per hour?

I can make 4,440 posters per hour. At this rate, how many minutes can I make 370 posters?

I can vacuum 144 ft² of carpet in 5 mins.  how long would it take to vacuum 2880 ft² of carpet?

The ratio of 3 and 1/4 to 5 and 1/4 is equivalent to which ratio? 

A subway car passes 3 stations every 10 min at this rate how many stations will it pass in 1 hr

2/5 of all bricks were produced by 1 shop, total bricks was 1400 how much was from the 1 shop?