The interquartile range is 6.
Q3-Q1=IQR
17-11=6
Answer:
Im positive that u wrote the formula wrong, theres no dot on a formula. What I understand on how to count each molecules is by the following
1) The coefficient in front of the molecules serves a type of multiplier, lets say 3 CO2, you take the 3 and multiply to each atom, so it would be 3 C and with O you do 3x2 cause 2 oxygen atom and it would become 6 O.
2) For the bracket lets say (CH3)2, Its the same thing as coefficient, the subscript 2 serves as a mulitplier, so there would br 2 C and 6 H
3) What happens if you have both the coefficient and subscript. Well, lets take an example of 2(NH3)2, you multiply everything together. So by doing the example, N would be 2 x 1( because theres 1 N) x 2( this being the subscript), which would be 4 N. For H, its 2 x 3(Because theres 3 H atoms) x 2(this being the subscript), which is equals to 12 H atoms.
Hope I didnt confuse you that much and asnwered your questipn, good luck in your future test. : )
<h2>○=> <u>Correct answer</u> :</h2>
Money in Alex's account after 16 years = 
<h3>○=> <u>Steps to derive correct answer</u> :</h3>
Money invested by Alex = £3045
Percentage of compound interest per annum = 2.25%
We know that :
In this case :
Principal = £3045
Rate = 2.25% = 0.0025
Number of times interest is compounded per year = 1
Time = 16 years
Which means :
Money Alex will have in the account after 16 years :
Therefore, the money in Alex's account after 16 years = £4347.11
