Answer:
291 - 5y
Step-by-step explanation:
x- a measure of the fourth angle
The equation

I think it’s x>=-3
That means greater than or equal to btw :)
He subtracted the 29fron the 30
Answer: 15
Step-by-step explanation: Use the formula: 
Remember
should always be the hypotenuse or the longest side.
---> evaluate the exponents
----> subtract 12544 to the other side
---> take the square root of both sides
