The answer is 16.5 hope this helps!
Answer: 114
Step-by-step explanation:
Plug in the numbers. 5*5+2*5*8/2*2+3*3=25+80+9=114
Answer:
B . 
Step-by-step explanation:
<u>Arithmetic sequence</u>:-
Step1:
Given sequence is 
Above sequence taking numerator terms
3,6,9,12,15 are in arithmetic progression
First term a= 3 and difference d = 3
now n t h term of given sequence is

now substitute a =3 and d=3

Step2:-
Above sequence taking denominator
4,5,6,7,8...
here a=4 and d=1



Final answer is the general term of given sequence is

Answer:
13x + 12
Step-by-step explanation:
The area of the walkway & garden - the area of the garden = the area of the walkway
Well, what you need to figure out is what times 9 is 63. That would be 7. So n=7 :)