Answer:
Luke is wrong because 4r + 5 + 2r = 6r+5.
You can only add numbers with the same variable, 4r and 2r have the same variable so they can be added while 5 does not have a variable, this means it cannot be added to 4r and 2r.
Step-by-step explanation:
4r + 5 + 2r
4<u>r</u> + 2<u>r</u> + 5
6r + 5
no Luke is not correct.
Let 'x' be the original price.
x + 39% of x = 197.38
x + 0.39 x = 197.38
1.39x = 197.38
x = 197.38/ 1.39
x = 142
129
