2x + y = 4 y = 3x - 1 Is (1, 2) a solution to both equations? Choose 1 yes or no​

What is the interquartile range of this data set? 2, 5, 9, 11, 18, 30, 42, 48, 55, 73, 81

The function f(x)= -(x+5)(x+1) is down. what is the range of the function?

Emily convinced her mom to buy a giant box of her favorite cereal. her mom doesn't think the box will fit on their shelf. the volume of the box is 1000 cm^3 . the base of the box is 25 cm by 10 cm