Answer:
224
Step-by-step explanation:
the dog has 320 bones :)
-2x
The expression itself is -2x. We subtract the coefficients 7 and 9 to get -2.
hope you can understand
James
James rate:
2x + 2 = 4
2x = 2
x = 1 hour
Rate = distance/time = 4/1 = 4 miles per hour
Craig's rate = 1/2 = 0.5 miles per hour
James is faster
