The answer is actually e although it would have been a
tan 18 = 120/x
https://www.jiskha.com/questions/644268/From-the-top-of-a-cliff-120-m-above-the-water-the-angle-of-depression-of-a-boat
Option A is the correct answer.
The cubic parent function is y = x³ , with no coefficients multiplied to x and with number added to or subtracted from x. Other cubic functions are a modified form of parent cubic function.
So, the answer is y = x³
Let cost of 1 apple i=x dollar
and cost of 1 orange =y dollar
according to question we get following equation
james, 5x +10y=4.......(1)
donald, 3x+9y=3........(2)
solving 1,2 eq. we get
x=2/5 dollars and y=1/5 dollars