Question

What is the 1oth term of this sequence 0.75,1.5,3,6,12

Answer 1

Seems to be a geometric sequence which is found by
$a_{n}=a_{1}(r)^{n-1}$

an=nth term
a1=first term
r=common ratio

first term is 0.75
it doubles each time so common ratio is 2

$a_{n}=0.75(2)^{n-1}$
to find the nth term, input n and evaluate
example
to find the 20th term
$a_{50}=0.75(2)^{20-1}$
$a_{50}=0.75(2)^{19}$
$a_{50}=0.75(1048576)$
$a_{50}=786432$


just to find the kth term, input k for n in
$a_{n}=a_{1}(r)^{n-1}$

Answer 2

If you mean 10th, the answer would go:
.75,1.5,3,6,12,24,48,96,192,384.
So, final answer is 384