Please help A woman bought a number of items for $40. She realized that if she had bought 4 more items for the same money, she would have paid $5 less per item. How many items did she buy? She bought items

Amerchant has coffee worth $60 a pound that she wishes to mix with 50 pounds of coffee worth $90 a pound to get a mixture that she will sell for $70 a pound. how many pounds of the & 60 coffee should be used?

What is the expression in factored form? -x^2 + 3x + 28 a. (x-7)(x-4) b. -(x-7)(x+4) c. (x+4)(x+7) d. -(x-4)(x+7)

Find the value of x for which line a is parallel to line b