Which method (graphing, substitution or elimination) would you use to solve the system of equations x = y +11 and 2x +y = 19 and why. ​

An arc subtends a central angle measuring 7pi/4 radians what fraction of the circumference is this arc?

You give a $4 tip for a meal that cost $22. approximately what percent of the bill was your tip?

Pepe and leo deposits money into their savings account at the end of the month the table shows the account balances. if there pattern of savings continue and neither earns interest nor withdraw any of the money , how will the balance compare after a very long time ?