Simplify 4n5 + 3.5n5 + (-2.1n5). 20 n5 5.4 n5 6.4 n5 4.4 n5

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?

Line cd passes through points c(1, 3) and d(4, –3). if the equation of the line is written in slope-intercept form, y = mx + b, what is the value of b? –5 –2 1 5

Find the solution of system of equation y= x-4 y=4x+2