Which statement illustrates the identity property of addition? 7x + 0 = 7x 7x + 1x = 8x 7x · 1 = 7x 7x · 0 = 0

For this case, the first thing you should know is the meaning of identity property of the addition.
 We have then that by definition:
 Identity property of the addition: The zero is called the identity element of the sum. The order in which you add the two numbers does not change the result.
 We have then that the expression is:
 7x + 0 = 7x
 
 A statement that illustrates the identity property of addition:
 7x + 0 = 7x

Answer for 2: his profit would be $2.88 explanation: you have to first multiply 72 and 0.12 together to get $8.64 once you do that you know how much money the shopkeeper made from selling the candy bars individually. so you have to do 8.64-5.76=2.88 hope that ; )answer for 3: yeah i’m sorry i have no idea what number 3 is. i’m sorry i couldn’t with that.