Answer:
x = 12, y = 1
Step-by-step explanation:
y - x = -13
-4x + 3y = -51
Find y.
y = -13 + x
Plug y into 2nd equation
-4x + 3y = -51
-4x + 3(-13 + x) = -51
-4x + -39 + 3x = -51
-x = -12
x = 12
y = -13 + 12
y = -1
It’s not the answer, but if you search Pythagorean theorem calculator online, you can find the missing length by typing in the side lengths you currently have
Multiply each side by x, leaving you with 3-6/10+4, then solve to get -3/14
Hope this helps :)
So this is a bit confusing. I don't know if you need me to solve them then simplify or just reduce them but I will try to write it anyways.
1.
For this, you can just multiply 3 by 5 which is 15 then place it as an exponent as

But if you need to solve it, you multiply 4 by itself 15 times which is107,3741,824 but I don't think thats what you are looking for but here it is anyways
I assume that it was the former that was the answer
Answer:
2. 
When dealing with negative exponents, you get one and divide by the base according to the exponent. It says -2⇒2 which means you divide 1 by 4, twice
1÷4÷4=.0625
Answer: .0625
3. 
Since its positive, you multiply by the base number (rather than divide if it was negative)
So it is 4×4×4=64
Answer: 64
4. 
Here, you just take what I did in step 3 and multiply by the base number according to the exponent
4×4×4×4×4×4×4×4=65,536
Answer: 65, 536
5. 
You do what you did in the previous steps but multiply the base 15 times
4×4×4×4×4×4×4×4×4×4×4×4×4×4×4=1,073,741,824
Answer: 1,073,741,824
If you don't know what to do, go and ask your teacher because he/she would know best on what to do :-)
Answer:
b, d, e, g are the points