If numbers 1,2,3,4,5 are to be used in a five number code, how many different codes are possible if repetitions are not permitted

Adepartment store purchases screen-printed t-shirts at a cost of $5 per shirt. they mark up the price 150% (making the selling price 250% of the store's purchase price) and put them on the sales floor. every month that a t-shirt doesn't sell, the store reduces the selling price by 25%.

Solve for x -2.3(r - 1.2 ) = -9.66 enter you answer as decimal.

Which function is odd check all that apply a. y=sin x b. y=csc x c. y=cot x d. y=sec x