Final answer:
The jeans will cost $55.30 after the 30% discount.
Step-by-step explanation:
To find the cost of the jeans after the 30% discount, we can use the formula:
Discounted Price = Original Price - (Original Price * Discount Percentage)
Substituting the values, we have:
Discounted Price = $79 - ($79 * 0.30)
Calculating the expression, we get:
Discounted Price = $79 - $23.70
= $55.30
Therefore, the jeans will cost $55.30 after the 30% discount.