Solve the system of equations by graphing. 3x-9y=45
2x-6y= -12

8000 + 8800 + 8000 + 8 million + 80 trillion + another a katrillion equals

Astudent survey asked: "how tall are you (in inches)? " here's the data: 67, 72, 73, 60, 65, 86, 72, 69, 74 give the five number summary. a. median: 73, mean: 70.89, iqr: 5, min: 60, max: 74 b. 60, 66, 72, 73.5, 86 c. 60, 67, 72, 73, 74 d. 0, 60, 70, 89, 74, 100

3x + 4y = 5 x- 3y = -7 solve by substitution