What part of an hour is 45 minutes ?

3/4 or 75%

Step-by-step explanation:

3/4

Step-by-step explanation:

3x3 = 9 and 2x2 = 4

step-by-step explanation:

for finding the midpoint of any given 2 pair of points simply add the respective x coordinates with other x coordinate and the y coordinate with other y coordinate and divide them by 2

in your question it will be :

(3+1)/2 for the x coordinate of mid point i.e 2

[8+(-4)]/2 for the y coordinate of midpoint i.e 2

so coordinates of mid point of points (3,8) and (1,-4) will be (2,2)