$(1$ point$)$

Assume $n$ is a positive integer. Consider the loop below:

$x$:$=0$

for $i$:$=1to5n$

$,x$:$=2*(x+i)-7$

next $i$

next $i$

There are

operations performed in each run of the loop and the loop runs

times, so the total number of operations performed in this loop is