Hello!
As you cans see, the angle is a right angle, which measures 90°. One of the angles measure 35°
90 - 35 = 55
That means 5x = 55°
Divide both sides by 5

Answer:
790.272
Step-by-step explanation:
Yes it is a function because there are not any repeating x values ( first number in each set of parentheses)
There would approximately be 36 ordered triples