There are 266 students watching a play in the auditorium. there 10 rows with 20 students in each row and 5 rows with 8 students in each row. how many students r sitting in each of the two remainingrows if each of those row has an equal number of students ?

Given the system of equations presented here: 2x + 4y = 14 4x + y = 20 which of the following actions creates an equivalent system such that, when combined with the other equation, one of the variables is eliminated? multiply the second equation by â’4 to get â’16x â’ 4y = â’80 multiply the second equation by â’1 to get â’4x â’ y = â’20 multiply the first equation by 2 to get 4x + 8y = 28 multiply the first equation by â’1 to get â’2x â’ 4y = â’14

Sam opened a money-market account that pays 3% simple interest. he started the account with $7,000 and made no further deposits. when he closed the account, he had earned $420 in interest. how long did he keep his account open?

Graph each quadratic function and identify its key characteristics. f(x) = x^2 - 2x - 3