Adoctor charges $75 consultation fee plus $50 per hour. another doctor charges $50 consultant fee plus $60 per hour

What is x and y (use substitution? ) 5x+3y=38 and y=3x+8?

So me with this math problem. find the value of x the table shows the masses of 50 eggs. mass: 40-44 eggs: 6 mass: 45-49 eggs: x mass: 50-54 eggs: 12 mass: 55-59 eggs: 10 mass: 60-64 eggs: 7 mass: 65-69 eggs: 2 you!

Which statement justifies why angle ebc measures 90?