Answer:
4.86%
Explanation:
Given that,
First-class postage for a 1-ounce envelope = 4 cents
On August 1, 2007
A first-class stamp for the same envelope cost = 41 cents
Period, n = 49 years





i = 1.0486 - 1
= 0.0486 or 4.86%
Therefore, the interest rate is 4.86%.
Answer:
Cost-plus-fixed-fee pricing
Explanation:
Cost-plus-fixed-fee pricing is when the contractor specifies the expenses of a project and a fixed fee for the services that provides which allows the contractor to earn a profit. In this type of pricing, the overall cost of the project is determined at the end and all the authorized costs are paid to the contractor in full. According to this, the answer is that these contractors use cost-plus-fixed-fee pricing to compensate them for any cost overruns.
Explanation:
I believe this is what you are asking for, Newton's law of gravitation.
The law of Newton's universal-gravitation states that every particle will attract every other particle in the universe. The force that attracts this is a force that is directly proportional to a product of the mass.