Use the following diagram to answer questions 5-7 1) Tracy calculates the correlation and variance between the health care expenditures of a country and life expectancy. Given the diagram, what percent of variation in life expectancy is not explained for by health care expenditures?
A) 72
B) 28
C) 85
D) 15

2) What is the correlation between the health care expenditures of a country and life expectancy?
A) 0.28
B) 0.85
C) 0.15
D) 0.72

You eat 8 strawberries and your friend eats 12 strawberries from a bowl. there are 20 strawberries left. which equation and solution give the original number of strawberries?

Idont understand math at all! : o( use this scenario to answer the remaining questions: brenton purchased a new bedroom set for $4,500.00. he lives in arizona and pays a 8.75% sales tax. if he made a 50% down payment and financed the rest, what amount did he finance? what is the total sales tax brenton will pay? enter your answer in currency format, round to the nearest cent. what was brenton's total amount financed? enter your answer in currency format, round to the nearest cent.

The price of an item has been reduced by 30%. the original price was $30. what is the price of the item now ?