If they’re all weighted equally, then your average grade will be 79.9%
y = mx + b
I mean, thats the formula? :/
Firstly, you change it to miles per second and then to feet
102miles per hour(60×60s)
102 per 120s
Divide
102÷120
=0.85miles per second
Convert to feet
=4488 feet per second
I think it is ae if i get it wrong sorry goodluck