When is a fraction irrational? select one:
a. when it is negative
b. when it is improper
c. never
d. when it's a mixed number

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%.

Cole says the distance between points (-5,0) and (0,-5)is 5 units. is he correct? explain why or why not.

Will mark 50 show all what is the solution to the system of equations? use the substitution method and show your work. -5x+y= -3 -15 x+3y=7 explain what your answer in part (a) tells you about the association of the lines in this system.