How would you write 12 using a positive exponent?
a 12^3
b 12^0
c 12^3/1
d 1/12^3

Acar started driving from city a to city b, distance between which is 620 miles, at a rate of 60 mph. two hours later a truck left city b and started moving towards city a at a rate of 40 mph. how many hours after the truck's departure will the two meet?

Factor and solve to find roots x squared -x - 90 =0

Mrs.sling bought a pound of green beans for $1.80. how much will mrs.tennison pay for 3 1/2 pounds of green beans?