If you are not familiar with the Pythagorean theorem, I will write it below to remind you for your future mathmatical endeavours:

c is the hypotenuse, and a and b are the other two sides. The hypotenuse is the largest side of a triangle. In this example, a and b are equal to each other and c is equal to 2, so I'm going to convert b into a and do some math trickery here:


Basically, I swapped b with a and combined like terms. Then I just replaced c with 2, then squared it into 4.
All you have to do now is solve for a
Step 1 is to divide both sides by 2 to get:

Then just square both sides:

Now you know that the length of the sides are equal to the square root of 2.
Sorry if this was a bit rushed, I hate running out of time on these. If you have any questions on why I did something, ask away in the comments.
Answer:
90+.30=1.20 per mile
if he goes 30 miles he would pay 120$
90x30=120
idk if this is right but I hope so
Answer:
The volume is 
Step-by-step explanation:
we know that
The volume of a triangular prism is

where
B is the area of the triangular base
L is the length of the prism
we have

----> perpendicular distance between the two triangular bases
substitute

Answer:
1.5 - 1 1/5 = 3
10
= 0.3
Step-by-step explanation: