I believe you just multiply the two numbers together and get 2.665
Multiply 4.51 by 3.4
That's all it is asking you
4*3=12
2*2=4
12+4=16
16/4=4
4*5=20
Therefore, $20 was the original amount of money in your wallet.
2x-14=-3x+6
You need to combine like terms and get all the x's on one side and the numbers on the other
2x+3x-14=6
5x=6+14
5x=20
now divide to get x alone
x=4
Hope that helps
9^2 + 12^2 = 225. the square root of 225 is 15. x=15