What percentage of students earned A’s on their paper ?

Write the system of equations represented by the matrix. 0 1 2 4 -2 3 6 9 1 0 1 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?

If f(x) = 2x + 8 and g(x) = x4, what is (gº)?