Adealer bought a product for 25$ sold it for 26$, bought it back for 27$, and sold it for 28$.how much profit did he make?

He had a profit of $2.  Made a $1 each time he sold it.

$2

Step-by-step explanation:

Total  he spent = 25 + 27 = $52

Total he got from sales = = 26 + 28 = $54

Profit= 54 - 52 = $2

x is variable or an unknown value to find

example:

2x = 5 which means x = 3

a negative exponent is translated as follows:

so, we have