Michael Can skateboard 100 feet in 5.4 seconds how fast can Michael skateboard in miles per hour?

Apply the distributive property to simplify the expression. −4(5x + 2)

Situation: an archaelogist in turkey discovers a spear head that contains 54% of its original amount of c-14. n = noekt no = inital amount of c-14 (at time t = 0) n = amount of c-14 at time t k = 0.0001 t = time, in years find the age of the spear head to the nearest year

First to answer will be the brainliest i need the answer asap