What is the land bridge, between north america and asia, it is believed indians migrated across to settle in the americas?
a. beringia
b. asiamerica
c. isthmus of panama
d. bering strait

Enter the number of complex zeros for the polynomial function in the box. f(x) = x+ + 5x² +6

If square root x = -7, then x= -49 true or false

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.