So just switch x and y to get:

and solve for x.
so f(-1) = x = 2y -10
Answer:
100m
Step-by-step explanation:
First, find the area of one triangle. Use l*w/2 to do that.
10*5=50
50/2=25
Multiply this by 4 to get the total area
25*4=100
Have a good day!
Two fractions equivalent are 18/20 & 27/30
After 6 years, the hourly rate should be 34.69 (or something around that since you may want to round)
<span>5999382000 is the answer</span>