Answer:
Jose will pay 2 dollars less for the jacket than Evan.
Explanation:
Given:
Selling price of the jacket at the store (SP) = $40
Amount paid by Jose to buy the jacket is 0.7 of SP.
Discount coupon Even has = $10
Now, amount paid by Jose is 0.7 of SP. So, this equals:

Amount paid by Even is equal to the total amount minus discount coupon.
Therefore, framing in equation we have:

Therefore, we observe that,
. Also,

Hence, Jose will pay 2 dollars less for the jacket than Evan.