Sheila has sketched a net for a cylinder as shown below.
What is the closest to the total surface area of her cylinder?

A. 141 in2
B. 68 in2
C. 198 in2
D. 297 in2

Dylan and dusty plan to take weekly surfing lessons together. if the 2-hour lessons are $20 per person and they plan to spend $100 each on new surfboards, what is the maximum number of lessons the two can take if the total amount spent for lessons and surfboards is at most $480?

Which of the following vectors are orthogonal to (2,1)? check all that apply

Is the ordered pair (-10, 7) a solution to the equation y = 17 – x? yes or no