1)estion 2 an investment account gives to interest annually, how much equal annual deposits you have to make for 10 years starting year 1 to have a $250

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answer 1.https://drive.google.com/file/d/12XO5z_oFKUTWiGGM1Is7ivV_9GfBEn0L/view?usp=sharing

answer 3https://drive.google.com/file/d/1Yaz4Kj1R39VGqI0_FErw3xyb9fFVd7lf/view?usp=sharing.

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2)PW = -39806 + 9568 (P/a ,15%, 12) + (9568 * 0.12) (p/f, 15%,7)
PW = -39806 - 9856 * 5.4206 - 1148.16 * 10.19
PW = 104,931.18.

3)According to the question, we have been asked about the reason for real GDP increasing less rapidly than nominal GDP.

Historically, real GDP has increased less rapidly than nominal GDP because the general price level has increased.

To understand this, we need to understand the following terms:

1) Real GDP: Real Gross Development Product is basically a macroeconomics concept which measures value of economic output adjusted for price changes (i.e., inflation or deflation).

2) Nominal GDP: Nominal Gross Development Product includes assessing economic production in an economy and normally it involves current prices of goods and services.

3) Deflator: It is a measure of level of prices of all new, domestically produced goods and services in an economic year.

We can depict these two in formula as follows:

Real GDP=Nominal GDP/Deflator

The following graph shows the difference between Nominal and real GDP in US from 2012 to 2019.

So, Real GDP has increased less rapidly than nominal GDP because of increase in price level.

We can see in the formula, Real GDP is calculated by dividing the nominal GDP with Deflator i.e., price level. So price level is inversely proportional to Real GDP. Thus, increase in Deflator will decrease the real GDP. Thus increase in price level has resulted in less increase in real GDP than nominal GDP.

Thus other options are irrelevant according to the question. Thus, the correct answer will be 'the general price level has increased'.please see the link.