Please use formula, s(t2)-s(t1)/ t2-t1 for average velocity and formula s(t1+h)-s(t1)/h for instantaneous velocity and show all working and formulas please

8. If s( t) = 4t + 1 is a measure of feet traveled with t measured in seconds, find a. the average velocity between / = 1 and ( = 5 b. the instantaneous velocity at t = 2 seconds (9. If s(t) = 12 + 4 is a measure of feet traveled with t measured in seconds, find a. the average velocity between t = 0 and t = 4 b. the instantaneous velocity at t = 1 second 10. If s(t) = 12 - 3t + 2 is a measure of miles traveled with t measured in hours, find a. the average velocity between t = 0 and t = 4 b. the instantaneous velocity at t = 1 hour 1 1. If s(t) = 13 + t-1 is a measure of meters traveled with t measured in seconds, find Ca. the average velocity between t = 2 and t = 7 b. the instantaneous velocity at t = 2 seconds