What is the value of x pls help

A. 127 cm^2 b. 144.5 cm^2 c. 172 cm^2 d. 50 cm^2

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

Solve the problem. a student earned grades of c, a, b, and a in four different courses. those courses had these corresponding numbers of credit hours: 4, 5, 1, and 5. the grading system assigns quality points to letter grades as follows: a = 4, b = 3, c = 2, d = 1, and f = 0. compute the grade point average (gpa) and round the result to two decimal places. 3.40 3.50 8.75 2.18