Answer:
nth term = tn = n� - 2n - 6
if i'm wrong i'm rlly rlly sorry!!
$5 per hour is the constant rate because 10/2 is 5, 20/4 is 5 etc.
easy peasy
$3 divide by 4 smoothies to give you the price of each individual smoothie
comes out to .75 cents
now 9 times .75 cents equals 6.75 plus .75 cents because she bought a smoothie for herself
comes out to be $7.50
From right triangle trigonometry, we have the following:

,
where the "opposite side" means the opposite side to angle with measure

, and "adjacent side" means the adjacent side to angle with measure

.

is a constant which can be found using a calculator.
In the calculator of the pc press: view - scientific - 35 - tan.
This gives

Thus, back in the equation

we substitute as follows and solve:


Answer: 8.4 cm