Answer:
11
Step-by-step explanation:
because the length of 12 is the same of t+1 so 11+1=12
youre welcome
Answer: m = -3
............................
Answer:
Zero
Step-by-step explanation:
Slope is:

Since there is no change of the y value, there is no slope.
Answer:
Step-by-step explanation:
31 - 12n = 21l Subtract 31 from both sides.
31-31-12n =211-31 Do the subtraction
-12n = 190 Divide by -12
-12n/-12 = 190/-12
n = -15.333333
Answer:
The average speed is 465 mph
Step-by-step explanation:
1860/4 = 465