Answer:
Getting through ratio method
100-20=80 percent have to pay
18:80
<em>x</em>:100
cross multiply
80 x <em>x=1</em>8 x 100
80x=1800
x=1800/80
x=22.5
So the original price was $22.50
Step-by-step explanation:
Answer:
gradient = 5
Step-by-step explanation:
you can do this by subbing points into the slope formula or you can just do rise over run
Answer:
Step-by-step explanation:
Answer:A: plug it into a online graphing calculator and find the highest point and where it is on the x axis at that point
b: find the highest point and where it is on the y-axis at that point
Step-by-step explanation:
above
