Mary and her five children are to inherit a total of $12,400 mary is to receive 1/4 of the money and the children are to evenly split the remaining moneys how much money will each child receive

12,400 divided by 4 equals 3,100
12,400 minus 3,100 equals 9,300
9,300 divided between the five children is 1,860
Which means each child will receive $1,860

For 15 to 20, change the equation from y=mx+b into mx-y=-b
Example: 15) y=-5x+2 into -2=-5x-y or 2=5x+y
For 21-29, the numbers in the parenthesis are coordinates (x, y) so uh the equation y=mx+b plug in the m that is given and x and y and then solve for b to complete the equation
Ex: 21) (-8,3) m=2
Y=mx+b
3=2(3)+b
3=6+b
-3=b
So y=2x-3
Do the same to the others