The sum of two numbers is 47 and the difference is 15

Step-by-step explanation x + y = 47 {sum of two numbers is 47}

x - y = 15 {difference of two numbers is 15}

2x = 62 {added the two equations together}

x = 31 {divided both sides by 2}:

i think ur answer is   (3,-1)

$25

step-by-step explanation:

25 - 4.50 = 20.5

20.5 / 2 = 10.25

10.25 + 10 = 20.25

20.25 - 12.50 = 7.75

therefore the answer is $25 as shown as the first number.