I think thats a culture question, sorry.
Answer:
£70
Step-by-step explanation:
y×0.8=56
56/0.8= 70
70×0.8=56
you're just reversing the discount :)
$78.48 / 24 = $3.27
The cost was $3.27 per gallon.
Answer:

Step-by-step explanation:

rise = y₂ - y₁ = -1 - (-10) = -1 + 10 = 9
run = x₂ - x₁ = 9 - (-4) = 9 + 4 = 13
