The starting phase for all stars, including our Sun, begins when a dense region in a nebula begins to shrink and warm up. This is usually the result of one of several events that may occur to initiate the gravitational collapse of a molecular cloud
Take the cost of the shirt and multiply it by 0.07 for the sales tax. Then add this number to the original cost for the new cost with the sales tax included.
and 
gives 
.
