If (x + k) is a factor of f(x), which of the following must be true? BER
Of(k) = 0
O f(-k) = 0
O A root of f(x) is x = k.
O A y intercept of f(x) is x = -k.

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%.

Acoin bank containing only dimes and quarters has 12 more dimes than quarters. the total value of the coins is $11. how many quarters and dimes are in the coin bank?

What is negative 3/9 times negative 2/8 ?