7⋅(−4)⋅(−6) help please

10 ! a train starts from grand city and travels toward belleville 388 miles away. at the same time, a train starts from belleville and runs at the rate of 47 miles per hour toward grand city. they pass each other 4 hours later. find the rate of the train from grand city.

Is there an x intercept in the equation 60*1.15^x

Determine if each number is a whole number, integer, or rational number. include all sets to which each number belongs. 4. -12. 5. 7/8