The closest distance between earth and mars is approximately 3.39 × 10^7 miles. the fastest rocker leaving eartg travels at an average speed of approximately 3.6 × 10^4 miles per hour. at that rate, which expression could be used to determine the approximate number of hours it would take the rocket to travel that distance?

a. (3.39 × 10^7) - (3.6 × 10^4)
b. (3.6 × 10^4) - (3.39 × 10^7)
c. (3.39 × 10^7) ÷ (3.6 × 10^4)
d. (3.6 × 10^4) ÷ (3.39 × 10^7)

which system of equations has no solutions
a. 3x + 4y = 5
6x + 8y = 10

b. 7x - 2y = 9
7x - 2y = 13

c. 2x - y = -11
-2x + y = 11

d. 3x + 6y = 1
x + y = 0