Please use the midpoint formula to find the midpoint between these two points. (-5,2), (5,1)
(-2.5, 3.5)
(0.5, -2.5)
(0,1.5)
(0,0)

The difference of three and the reciprocal of a number is equal to the quotient of 20 and the number. find the number.

The students in a class were asked how many siblings they have. the data obtained is represented in the dot plot. the number of students who have no siblings is . the number of students who have three or more siblings is .

The first week samantha learned to read braille, she could read 10 words per minute. in the second week she increased her speed by 20%. in the third week she increased her speed again by another 25%. how many words could she read per minute by the third week? hurry and tell me!