Answer:
x = 20 ft
Step-by-step explanation:
We can use similar triangles and ratios to solve
4.5 ft 6 ft
--------- = ---------------
15 ft x ft
Using cross products
4.5x = 15*6
4.5x =90
Divide each side by 4.5
4.5x/4.5 = 90/4.5
x =20
2r - 4 2(r - 2)
--------- = ----------- = 2
r - 2 r - 2
answer
2
If it doesn't matter whether the points are integers or not you can just pick a number for either y or x and solve for the other variable. For example, if you pick 3 to be your x, plug it in and then solve for y. Start out with:

Plug in 3 for x:

. Then,

. Subtract 21 from both sides and then divide by -3 on both sides. You end up with y=-7 so one of your points is (3, -7)
Answer:
enough to process what a word is
Step-by-step explanation: