For one moth it would be....

$57.00 In total but im not sure if this is correct so if you could make sure please.
Answer:
sin(a)=20/29
cos(a)=21/29
Answer:
Step-by-step explanation:
We use trig to answer these questions:
sin x = opposite side of a triangle / hypotenuse
cos x = adjacent side / hypotenuse
Construct a right triangle with hypotenuse 4 m and lower angle 68 degrees.
The height of the top of the ladder is then defined by:
sin 68 degrees = height / 4 m, which yields (4 m)(sin 68) = height =
3.71 m
and the distance of the bottom of the ladder from the wall as follows:
cos 68 degrees = horizontal distance / hypotenuse =
1.50 m
X + x + x + x - 20 is equivalent to 4x - 20 because you can add the like terms, or the x's.