Answer:
(-9, 10)
Step-by-step explanation:
The location of the midpoint of a line with endpoint at (
) and (
) is given as (x, y). The location of x and y are:

Given the endpoint (9,8) and Midpoint (0,9), the location of the other endpoint can be gotten from:

Hence the endpoint is at (x2, y2) which is at (-9, 10)
Answer:
hope this helps A block of ice melts in 2.5 hours when the temperature is 54 degrees.
Step-by-step explanation:therefore you can increase 2.5 and decrease 54 to whatever number you need
Answer:
(B)
Step-by-step explanation:
PRINCIPAL AMOUNT(p) = $400
RATE (r)= 250% = 2.5
INTEREST = $80
t = time (in days) = t/365
By using the formula,
r = 
2.5 = 
t = 
t = 29.2
t = 29 days (approx)
Hence option (B) is correct.
If you were at 54 on the number line you would have to cross zero and go an extra 13 steps to get to -13.
So we want the difference between 54 and -13 or 54- -13 which becomes 54+13 which is 67 - that is the range