Because change in y for the rise is if it goes up or down and change in x for the run to see if it goes left or right
Answer=0.3
1/10 of 3.0 is 0.3
3.0*(1/10)=0.3
Just simply multiply and then add'
15*.05= .75 so .75 was added to the price
now add
.75+15= 15.75
So the answer is $15.75
Z - z + 3 = z + 5
0 + 3 = z + 5
3 = z + 5
3 + z = 5
This can be simplified to 3 + z = 5.
This has one solution, 2.
