Teresa’s restaurant bill comes to $29.99 before tax. If the sales tax is 6.25% and she tips the waiter 20%, what is the total cost of the meal

The total cost of the meal is $38.23

Step-by-step explanation:

To find out the tax, you multiply $29.99 times .0625. The tax is 1.87  The total before the tip is $31.86 . To find out the tip, you do 31.86 minus 20%. The amount is $6.37 . Then you add $31.86 and $6.37 together to get $38.23

cross multiplying, we get :

⇒ (3) × (5) = (9) × (x)

⇒ 15 = 9x