How many days would it take you to count a million pennies if you could count one penny each second

Factor -8x3-2x2-12x-3 by grouping what is the resulting expression?

Two cyclists 84 miles apart start riding toward each other at the same. one cycles 2 times as fast as the other. if they meet 4 hours later, what is the speed (in mi/h) of the faster cyclist?

Define multiplicative inverse. give an example of a number and its multiplicative inverse.