a classroom is arranged with 10 seats in the front row 12 seats in the middle row and 18 seats in the back row the teacher randomly assigned seats to students as they enter the classroom what is the probability of the first student who enter the classroom will be assigned a seat in the middle row?​

You just purchased two coins at a price of $670 each. because one of the coins is more collectible, you believe that its value will increase at a rate of 7.1 percent per year, while you believe the second coin will only increase at 6.5 percent per year. if you are correct, how much more will the first coin be worth in 15 years?

Arational number that is equivalent to -20/4?

Examine this system of equations. what integer should the second equation be multiplied by so that when the two equations are added together, the x term is eliminated? 3/4x+1/7y=6 1/8x-3/5y=16