What is the nearest hundred of 403.12

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

Solving algebraic equations 2m+3=11

Given that y varies directly to the square root of (x + 1), and that y = 1 when x = 8,(a)express y in terms of .x,(b)find the value of y when x = 3,(c)find the value of x when y = 5.