4200ft divided by 20 ft per second divided by 60 seconds is 1400 minutes
What you want to do with this equation is make a triangle connecting the two points you have and count the distance (rise/run) for this you would get 6/1 !
Answer:

Step-by-step explanation:





Answer:1: P 2: d 3:a
Step-by-step explanation:
81.42
= 81+ 0.42
= 81+ 42/100
= 81+ (42/2) / (100/2)
= 81+ 21/50
= 81 21/50
The final answer is 81 21/50~