PLEASE!!
How many different 4-question geometry quizzes can a teacher make if there are 7 different problems to test on? Hint: combination
A. 28 quizzes
B. 38 quizzes
C. 14 quizzes
D. 35 quizzes

In the 30-60-90 triangle below side s has a length of and side r has a length

Me. i can't figure out this question. give an explanation too. .

Asystem of linear equations contains two equations with the same slope. select all of the correct statements. i a. the system may have two solutions. - b. the system may have infinitely many solutions. c. the system may have one solution. o d. the system may have no solution. submit