Question

To get the next number in a sequence you double the previous
number and subtract two.
The fifth number in the sequence is 50.
Find the first number.

Answer 1

Answer:

The first number in the sequence should be 3.5 or $3\frac{1}{2}$

Step-by-step explanation:

50 26  12 5 3.5

this can be represented with a logarithmic equation but im too lazy. reply if you want it