URGENT!! PLEASE HELP! RUNNING OUT OF TIME!! In which of the following expressions is the coefficient of term "x" 1?

A. 2x²+x-9
B. x²+2x+7
C. 2x²-3x+1
D. 3x²-x-5

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

15 and 14.7 are 1 apart, so 15 – 14.7 must be 1.

Ibeg you to me 20. a reaction produces 4.93 l of oxygen, but was supposed to produce 1 mol of oxygen. what is the percent yield?