Which set of ordered pairs represents a function? a {(1, 8), (8, 1), (1, 5), (5, 1)} b {(2, 1), (3, 1), (4, 3), (5, 3)} c {(5, 1), (3, 8), (3, 7), (7, 1)} d {(5, 1), (5, 6), (1, 3), (9, 7)}

81 seats

step-by-step explanation:

if you multiply 0.65 times 125 then you get 81.5 seats. well since you can't have half of a seat you have to round down and get 81 seats in the no children zones. that leave 44 seats outside of the no children zone.

its kind of blurry. can you put a clearer pic?

step-by-step explanation:

option (b) is correct

step-by-step explanation:

to find the solution of this system, we need to convert it into reduced row-echelon form. we have,

after applying row operations r2 -> r2/2 and r3 -> r3/3, we get,