(_ , _) means (X , Y)
(25 , ) means
X = 25 then you need find the value of Y from the equation .

so the first answer is (25,-3)
..............
( , -8) means
Y = -8 then you need to find the value of X from the equation .

so the second answer is ( 0 , -8 )
hope this would help you
The mean is found by adding the time it takes Greg each day and then diving by the number of days: 27+25+32=84.
84/3=28 min
it takes Greg 32 min on the third day
Answer:
250
Step-by-step explanation:
One quarter of 100 would be 25, so adding a zero to 100 (1000) would also mean adding a 0 to 25. Therefore, 250
Answer:
17/8 or 2 and 1/8 in decimal= 2.125
Step-by-step explanation:
5 2/3 Divided by 2 2/3
(5*3) + 2= 17/3
(2*3) + 2= 8/3
17/3 divided by 8/3= 17/3 * 3/8
= 17/8 or 2 1/8