Given the sequence 10, 20, 40, 80, find 25th term​

This sequence is a geometric sequence so u want to find out the formula

The formula for a geometric sequence is: ar to the power of n-1

A= first term and r= the factor between the terms (called the common ratio)

Now we juss input it in the formula

10 x 2 to the power of n-1

Now we want to work out the 25th term so n=25 we do 25-1=24

So it’s 10*2 to the power of 24

167772160

Hope this helped