If you mean

you can first substitute
to get

and so

Answer:
0.42 ÷ 7
Step-by-step explanation:
There is a total of 42 squares out of 100 in the diagram.
It is broken into 7 equal parts.
This can be represented by 0.42 ÷ 7
Answer:
The general form of a GP is a, ar, ar2, ar3 and so on. The nth term of a GP series is Tn = arn-1, where a = first term and r = common ratio = Tn/Tn-1) . The sum of infinite terms of a GP series S∞= a/(1-r) where 0< r<1. If a is the first term, r is the common ratio of a finite G.P.
hope helps
Simplify the expression.
5x+6y+ 16