Answer:
Price of (1) One way ticket = 487.75 QR
Price of (2) One way tickets = 487.75*2= 975.5 QR
Price for Return trip = 909 QR
Difference = 975.5-909 = 66.5 QR
There for Its is cheaper to buy to buy a return trip ticket by 66.5 QR
Ans: 60.50 QR
three thousand four hundred thirty-four and three hundred thirty-two thousandths
In general: <span>(a - b)^3 = a^3 - 3 a^2b + 3 a b^2 - b<span>^3
(4x-2y)^3 = </span></span>(4x)^3 - 3 (4x)^2(2y) + 3 (4x) (2y)^2 - (2y)^3