Jack has a collection of new nickels and quarters. he has a total of 50 coins worth $10.30. how many of each coin does he have?

In right ∆abc shown below, the midpoint of hypotenuse ac is located at d and segment bd is drawn.if ab = 12 and bc = 16, then explain why bd = 10. hint: consider what you know about the diagonals of a rectangle.

Solve each quadratic equation by factoring and using the zero product property. 10x + 6 = -2x^2 -2

Campus rentals rents 2 and 3 bedrooms apartments for $700 ans $900 a month respectively. last month they had six vacant apartments and reported $4600 in lost rent. how many of each type of apartment were vacant?