Hello, stupid_kid!

Inscription Rock rises straight upward from the valley floor.

From one point the angle of elevation of the top of the rock is 16.7°.

From a point 168m closer to the rock, the angle of elevation of the top of the rock is 24.1°.

How high is Inscription Rock?

Answer: 153.1m Here's the diagram . . . Code:

A*
| * *
| * *
| * *
y| * *
| * *
| * *
| 24.1° * 16.7° *
- * - - - - - - - * - - - - - - - * -
B x C 168 D

The height of the Rock is: $\displaystyle y = AB.$

The first point of observation is $\displaystyle D:\;\;\angle ADB = 16.7^o.$

The second point of observation is $\displaystyle C:\;\;\angle ACB = 24.1^o.$

. . Then: $\displaystyle CD = 168$ m.

Let $\displaystyle x = BC.$

Here's a start . . .

In right triangle $\displaystyle ABD:\;\;\tan16.7^o\,=\,\frac{y}{x+168}$

In right triangle $\displaystyle ABC:\;\;\tan24.1^o \,=\,\frac{y}{x}$

You should be able to eliminate $\displaystyle x$ from the equations and solve for $\displaystyle y$.