Answer:
Step-by-step explanation:
We can form a right triangle and use basic trig for a right triangle to solve this problem:
, where 
is the height of the tree.
Solving, we get:
.
105 m = 2.5 h
x miles = 1 hour
You cross multiply since it's a proportion:
2.5 * x
105 * 1
=
2.5x = 105
Then you divide everything by 2.5
The answer is 42
With adding and subtracting fractions, you must find a common denominator. In multiplication, you just multiply numerator by numerator; denominator by denominator. In division, you multiply the fraction by the reciprocal of the 2nd. In multiplication and division, finding a common denominator is not needed.
6 positive tiles because there’s 6 negative so 6 positive will cancel it out
