Answer:
<h2>8 ft 11 in</h2>
Step-by-step explanation:
It's a matter of proportions.
Let's call them A and B. Now, let's make an equation.

Now that we know that...

Her error was that she misplaced the numbers
-30x ≥ -300
its supose
to be -30x ≥ 200
They correspond to any real number.
Answer:
<h2>Direction is represented by +9, indicating that is moving in a positive direction (upwards).</h2><h2>Zero is the reference point.</h2>
Step-by-step explanation:
So, basically, we need to apply a reference system to express directions, because all movements are represented respect to a reference point. In this case, number zero represents that reference point, which is located in the ground, setting this reference point we can measure the distance that Xavier traveled upwards the apple tree.
the 7 digit is in the ten thousands place
the 0 is in the thousands place
the 6 is in the hundreds place
the 8 is in the tens place
the 1 is in the units place