What is the area of rectangle ABCD in square units?

According to the data set, where should the upper quartile line of the box plot be placed?

8.74 rounded to the nearest whole number

The value of x in this system of equations is 1. 3x + y = 9 y = –4x + 10 substitute the value of y in the first equation: combine like terms: apply the subtraction property of equality: apply the division property of equality: 3x + (–4x + 10) = 9 –x + 10 = 9 –x = –1 x = 1 what is the value of y?