Patel bought a model rocket kit from a catalog. the price of the kit was $124.95.the state sales tax of 7% was added, and ten a $10 charge for shipping was added after the sales tax. what was the total amount patel paid, including tax and shipping cost?

The answer is $143.70
(Work is below)

First calculate sales tax by multiplying $124.95 x 0.07 -
Model Rocket Kit: $124.95
Sales Tax Rate:    $    0.07
                         x
                              $  8.7465
You round up because      ^ more than five (four or below you would round down)

Sales Tax:             $8.75

Then you add the sales tax to the model rocket and add the shipping.

Model Rocket Kit:  $124.95
Sales Tax:              $    8.75
Shipping                 $  10.00

                         +
                               $143.70