Steve payed $4 in tax because 10% of 40 is 4. Steve payed $44 in total because 4+40=44.
The answer is..........
A. 9
We define variables:
x = represent the width of the field
y = represent the length of the field
We write the perimeter (with no fencing along the river):
2400 = 2x + y
We clear y:
y = 2400-2x
Answer:
an expression for the length of the field as a function of x is:
y = 2400-2x