The formula to find the amount is

Here A = amount
P is the principal
r is the rate
n is the number of years
Then to find the interest we subtract principal from amount.
Interest = A - P
Here
P= 2200, r = 3% = 0.03 , n = 6 years

Hence the interest earned = 2626.92-2200 = $426.92
Now if the total of $2200 was deposited in three banks then each account earns 
Each account earns $142.31
Answer:
B
Step-by-step explanation:
That was actually trickier than I thought it would be
I was looking for 4(x-4), but 4(x-2)(x+2) also works
R = {10; 15; 20}
S = {20; 25}
R U S = {10;15; 20; 25;
Answer:
£ 38,110
Step-by-step explanation:
We need to find salary for 1 year (12 months).
- Monthly Salary = 1410, so yearly would be:
1410 * 12 = 16,920
- 26% of total profit. Let's find the profit first:
Profit is Income - Cost
So, that would be (from table):
Profit = 549000 - 473500 = 75,500
26% of that would be:
26/100 = 0.26
0.26 * 75,500 = 19,630
- 390 bonus for each month she sells atleast 16 cars
Out of 12 months (1 year), she sold at least 16 cars in 4 months, so she gets bonus of 390 for those 4 months, that would make:
390 * 4 = 1560
Total Pay for the year would be summation of all these:
Total Pay = 16,920 + 19,630 + 1560 = £ 38,110