You have $28, and you want o get half-dollar coins from the bank to give to children who come into your store. what is the most you can get?

56 coins

Step-by-step explanation:

Half dollar coins are half of a dollar so multiply 28 by 2.

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)