First, you would need to create an equation for this problem (I think that is all you have to do, but I'll solve it anyway). Remember, 60% = 0.6
$49.95 - ($49.95 × 0.6)
Now, all you have to do is solve it. Using the order of operations (PEMDAS), you would start in the parenthesis.
$49.95 - ($49.95 × 0.6)
$49.95 - $29.97 = $19.98
The sandals cost $19.98 in August.
I hope this helps!