A keypad has only the letters A-D what's is the total number of possible outcomes if the code has 3 letters

Sketch one cycle if the cosine function y=2cos2theta

The cost of turkey is directly proportional to its weight. if a 12-pount turkey costs $27, how much does a 16-pound turkey cost? a. $33.75 b. $36.00 c. $31.00 d. $32.50

What is the area of a triangle with vertices at (-3 3) (-3,2) and (1,2)?