An essay test has 13 questions. students are required to answer 10 of the 13 questions. how many different sets of questions could be answered?

What constants do you need to add to each of the following quadratic equations to complete the square? 2x2 - 3x = 0 x2 - 8x = 0 2x2 - 11x = 18

Kayla has a $500 budget for the school party.she paid $150 for the decorations.food will cost $5.50 per student. what inequality represents the number of students,s, that can attend the party?

:24% of students in a class are girls. if there are less than 30 students in this class, how many students are there? how many girls are there?