The sum of two numbers is 11, and the difference is 1. let x be the larger number and y be the smaller number.

Students are given 3 minutes for each multiple-choice question and 5 minutes for each free-response question on a test. there are 15 questions on the test, and students are given 51 minutes to take it.how many multiple-choice questions are on the test?

How many solutions does the nonlinear system of equations graphed below have?

What is the measure of one interior angle of a pentagon