Answer:
The percentage change in nominal GDP from 2013 to 2014 was 4.29%
The percentage change in real GDP from 2012 to 2013 was 1.48%
The percentage change in real GDP from 2012 to 2013 was higher than the percentage change in real GDP from 2011 to 2012. FALSE
Explanation:
In order to calculate this we just have to calculate the percentages with a rule of thirds:

To calculate the first one we use the nominal GDP which is the GDP with the current market value:

To calculate the change in real GDP we use the values adapted to a pre-agreed monetary value, in this case the dollar at 2009:

To calculate the 2011 to 2012 we insert the values:

So with this we know that it is wasn´t higher the percentage change from 2012-2013, than that of 2011-2012
Technology wise: Apple or Microsoft
Food wise: McDonalds or KFC
Answer:
16.67%
Explanation:
Calculation to determine what percentage of your salary must you save each year
First step is to calculate the Annual savings
Annual savings=$5 million*[(10%-3%)/(1+0.1)^40-(1+0.03)^40]
Annual savings=$5 million*0.07/(1.1^40-1.03^40)
Annual savings=$8333.88
Now let determine the percentage of the salary you must save each year
Proportion of savings=$8333.88/$50,000
Proportion of savings=0.1667*100
Proportion of savings=16.67%
Therefore the percentage of your salary that you must save each year is 16.67%