The rule of 70 is a measure of how long it will take for prices to at a given inflation rate.

a. double
b. triple
c. quadruple
d. multiply by ten

A. double

Explanation:

Rule 70 is used to calculate the numbers of years it takes for an investment  or variable to double in value given a certain growth rate. In this case, the variable is prices and the growth rate is  inflation  rate. It is calculated by dividing number 70 by inflation rate.

For example;

Assume inflation rate is 6%, the prices will double in ; 70/6 = 11.7 years

And if inflation is 2%, the prices will double in 70/2 = 35 years

the answer would be voluntary exchange -

"the act of buyers and sellers freely and willingly engaging in market transactions. moreover, transactions are made in such a way that both the buyer and the seller are better off after the exchange than before it occurred."

hope this : )

-shy

the answer is     d. in our global economy, most job growth will be in services, but manufacturing jobs will exist, too.