The 8th term of a(GP) is 640. If the first term is 5, find the common ratio and the 10th term?

8 answers

5 * r^7 = 640 ... r^7 = 128 ... r = 2

10th term = 5 * 2^9
I need the calculation and the answer in the given question
I need the calculation and explaination to this question
The 8th term of G.P is 640,if the first term is 5, find the common ratio and the 10th term
The 8 term of a g.p is 640 if the common ratio and the tenth term
I have not understand all
The 8th term of G.P is 640,if the first term is 5, find the common ratio and 10th term
Just a slight workings but give headache