each granola bar costs $1 write an expression that shows the total costs of the granola bars using the variable j

Expression for the total cost is $1J.

Step-by-step explanation:

Given that each granola bar costs $1.

Now we need to write an expression that shows the total costs of the granola bars using the variable J.

So let's assume that the number of granola bars = J

then total cost of g granola bars = (J)($1) = $1J

Hence required expression for the total cost is 1J dollars.