31 is a prime number because only 1 times itself equals 31. no other two factors equal 31 as a product.
Answer:
non-linear
Step-by-step explanation:
it is nonlinear because if the numbers go up and then down then its not a straight line. therefore its not linear.
18 x 20 = 360
360 / 20 = 18
So 18 is the answer
94,000000 , 237,000 and 108
Answer:
Option D is the correct answer.
Step-by-step explanation:
Let x be the one way distance and t be the time out.
Time taken for back = t-1
We have plane's average speed out was 300 mph and average speed on the way back was 350 mph.
That is

Dividing both equations

Time taken for back = t-1 = 7-1 = 6 hours.
Total time taken = 7 + 6 = 13 hours
Option D is the correct answer.