Litres left can be solve as shown below
Selling price = 100%. = $18,000
1%= $18,000/100 = $180
6% = 6 x 1% = 6 x $180 =$1,080.
Down payment = $1,080
Step-by-step explanation:
y = -0.5x + c
When x = 4, y = -7.
=> (-7) = -0.5(4) + c, c = -5.
Therefore the equation is y = -0.5x - 5.
768.57 / 41.1 = 18.7 m per hr