A pair of jeans costs $89. A Jean jacket costs twice as much. What is the total cost of a jean jacket and 4 pairs of jeans?

It is given here that the cost of a pair of jeans is $89. It is also given in the problem that a jeans jacket costs twice as much as the pair of jeans.

Now

The cost of the jeans jacket = (2 * 89) dollars

= 178 dollars

Cost of 1 pair of jeans = 89

So

The cost of 4 pairs of jeans = (89 * 4) dollars

= 356 dollars

So we come to know that the cost of a jean jacket is $178 and the cost of 4 pairs of jeans is $356.

Total cost for the jean jacket and 4 pairs of jeans = (178 + 356) dollars

= 534 dollars

So $534 is the total cost of the jean jacket and 4 pair of jeans.