Answer:
Step-by-step explanation:
x+y = 175
y = 175 - x
f(x) = (x+3)(y+4)
= x(175-x) + 3(175-x) + 4x + 12
= 175x - x² + 525 - 3x + 4x + 12
= -x² +176x + 537
f'(x) = -2x + 176
maximum when x = 88
y = 175-x = 87
168 passengers because 168*95%=159.6
Therefore 168 passengers would have to book the flight
Answer:
73>78
Step-by-step explanation: 20 +50 + 9= 79 -6 = 73
the answer Is b and c
Step-by-step explanation:
because I did it