Blake's bill at a restaurant was $42.75. She wants to leave the waiter an 18% tip. How much will she pay in all, including the tip?

$6.41
$7.70
$49.14
$50.45

To find the tip, multiply the bill by the tip percentage: $42.75 * 0.18 = $7.695.

Rounding to the nearest cent, the tip is $7.70.
To find the total amount paid, add the bill to the tip: $42.75 + $7.70 = $50.45.
Therefore, Blake will pay $50.45 in all, including the tip.