Ratios, Percents, Units Part 2

 What is the difference between the fat burning heart rate and the aerobic heart rate of a person who is 35 years old?

How much will the company pay for the first three years it rents the equipment?

If the sale price of the table was $299, what is the usual price of the table? 

Given that density is mass divided volume, what is the density of copper in grams per cubic centimeter? 

What is the ratio of the cost, in cents per hour of life span, of a compact florescent lamp to that of a light emitting?

The result is what percent of the org. number?

Which of the following is the closest approximation of the percent increase in visits from 04 to 06?

 If 1 joule equals 0.239 calories, how many of these matches must be lit to produce 2,100 calories of heat energy? 

 Given that there are 5,280 feet in a mile, what is the race car’s maximum speed, in miles per hour?