Answer:
D, 30 ft
Step-by-step explanation:
Hello hereb is a solution :
It is an exponential equation with a domain of C. All real numbers.
40 mins left! total time= 60 mins x 3 hours =180 mins. 180 divided by 9 is 20. 20 times 7 is 140. 180-140 equals 40. yay!