Answer:
15) 
16) 12 hours
Step-by-step explanation:
15) 
16) If Jim drove 168 mi in 4 hours, this means it takes him

this many hours to drive 1 mile. So if we multiply this by 504 mi:

Answer:
27
Step-by-step explanation:
Remember to follow PEMDAS. Note that, when multiplying or dividing:
1) one positive and one negative = negative number
2) two positive = positive number
3) two negative = positive number
(-7)(-5) = -7 * -5 = 35
+(-8) = +1 * -8 = -8
Subtract:
35 - 8 = 27
27 is your answer.
~
Answer:
50 miles per hour!
Step-by-step explanation:
If 2 hours equal 100 miles, then 1 hour will be 50!
Hope this helped!
(144) * (x^2)
(12^2) * (x^2)
(3^2) * (2^2^2) * (x^2)
3^2 * 2^4 * x^2
The answer is 15x+7! :)
14x+x=15x and there is no other numbers that 7 can be added or subtracted by.