You can invest in taxable bonds that are paying a yield of 8.9 percent or a municipal bond paying a yield of 7.15 percent. Assume your marginal tax rate is 21 percent. Which security should you buy

We should invest in municipal bond to have profit.

Explanation:

So we need to identify the after-tax or equivalent tax exempt yield on the taxable bond:

8.9% ( 1 - 21%)

= 0.089*0.79

= 0.0703 = 7.03%  

and it is smaller than the  yield of municipal bond (7.15%)  so we should invest in municipal bond to have profit.

1   all nations face the problem of scarcity because there are limited resources and unlimited wants. nations do not have enough factors of production to produce everything that their population wants. entrepreneurial resources initiate businesses to make new goods and services; labor resources produce goods and services.

2 there are four factors of production: natural resources, labor resources, capital resources, and entrepreneurial resources. natural resources are raw materials from nature that are used to produce goods. trees, water, and grains are natural resources. some natural resources, such as wheat and cattle, are renewable

3 wants

things that you do not need to have in order to survive, but would like to have

needs

things that you must have in order to survive

goods

physical products

services

tasks that a business perform for customers

resources

items that people can use to make or obtain what they need or want

determine

to settle or decide by choice of alternatives or possiblities

4 i really dont know

answerimplicit;