Answer:
Amanda's plane flew 59ft
Step-by-step explanation:
So you make simple formulas for this A= Amanda D= Darren and R= Rachel
Darren's is twice as far as Rachel's so D=2R
Amanda's when 19 more feet than Darren's so A=D+19
Then you plug in, you know R=20
D=2R D=2*20 D=40
A=D+19 A=40+19 A=59