A team scores n goals and the other team scores n+5 goals. The total number of goals is less than 15. What is the possible range of n?

Team A scores $n$ goals.
Team B scores $(n+5)$ goals.
The total number of goals scored by both teams is the sum of their individual scores:

The total number of goals is less than 15.

Combine like terms:

Subtract 5 from both sides:

Divide by 2:

The inequality is $\boxed{n < 5}$.

In a parallelogram RSTU, opposite angles are equal, and consecutive angles are supplementary (add up to $180^\circ$).
Given:
$\angle RUT = (2x+30)^\circ$
$\angle RST = (7x-25)^\circ$

Angles $\angle RUT$ (at vertex U) and $\angle RST$ (at vertex S) are opposite angles in the parallelogram RSTU. Therefore, they are equal.

Subtract $2x$ from both sides:

Add 25 to both sides:

Divide by 5:

Substitute $x=11$ into the expression for $\angle RST$:

Angles $\angle STU$ (at vertex T) and $\angle RST$ (at vertex S) are consecutive angles in the parallelogram RSTU. Therefore, they are supplementary.

Substitute the value of $\angle RST$:

Subtract $52^\circ$ from both sides:

The value of angle STU is $\boxed{128^\circ}$.