25 in total what do you mean
Answer: 
Step-by-step explanation:
Given the polynomial 
, you can evaluate it for the given value of the variable "x" by substituting the value 
into the polynomial.
Therefore, when , you get the following result:
Answer:
d=5
Step-by-step explanation:
Answer:
8. 
and 1
9. 
and -5
Step-by-step explanation:
Hope this helps ;)
Answer:
4 hours
Step-by-step explanation:
The general formula for distance, rate and time is:
d = rt, where distance is the product of rate multiplied by time
Given that one train is moving at a rate of 70 mph and one is moving at a rate of 62 mph in the opposite direction, the combined distance over time is equal to 528 miles. Using the variable 't' for time:
70t + 62t = 528
Combine like terms: 132t = 528
Divide both sides by 132: 132t/132 = 528/132 or t = 4 hours
