engineering economy

solve A and B. please solve them right!!!!

Suppose natural gas experiences a 1.9% increase per year in real terms over the foreseeable future. The cost of a 1,000 cubic feet of natural gas is now $7.50. a. What will be the cost in real terms of 1,000 cubic feet of natural gas in 24 years? b. If the general price inflation rate e g the CPI for the next 24 years is expected to average 3.1% per year, what will a 1,000 cubic feet of natural gas cost in actual dollars 24 years from now? a. The cost of 1,000 cubic feet will be (Round to the nearest cent.)