Answer:

Step-by-step explanation:

Using the quadratic formula:

Hope this helps!
Answer:
$9 in interest for a total of $159
Step-by-step explanation:
Answer:
$30
Step-by-step explanation:
Dollars : Pesos
250 : 4250
X : 510
250/4250 = X/510
X = 30
Suggestion:
The width is the x value and the hight is the y value.
Plot the points on the graph as decimal if that helps.
The point at the bottom left is the origin (0,0)
I hope this helps.