What is the purpose of deposit insurance?

to protect financial institutions from depositors who withdraw their money and close
their accounts on short notice

to protect depositors from unfair or overly expensive fees

to protect the government from having to bail out financial institutions that behave
illegally or irresponsibly with deposits

to protect the money deposited in a financial institution in case that institution goes out
of business

Parks corporation is considering an investment proposal in which a working capital investment of $10,000 would be required. the investment would provide cash inflows of $2,000 per year for six years. the working capital would be released for use elsewhere when the project is completed. if the company's discount rate is 10%, the investment's net present value is closest to (ignore income taxes) ?

Asmall town wants to build some new recreational facilities. the proposed facilities include a swimming pool, recreation center, basketball court and baseball field. the town council wants to provide the facilities which will be used by the most people, but they face budget and land limitations. the town has $400,000 and 14 acres of land. the pool requires locker facilities which would be in the recreation center, so if the swimming pool is built the recreation center must also be built. also, the council has only enough flat land to build the basketball court or the baseball field. the daily usage and cost of the facilities (in $1,000) are shown below. which facilities should they build? facilityusagecost ($1,000)landswimming pool4001002recreation center5002003basketball court3001504baseball field2001005

The answer here, x=7, is not in the interval that you selected in the previous part. what is wrong with the work shown above?