Dale bought 23 pounds of flour for $10. how many pounds of flour did he get per dollar?

Can someone factor this fully? my friend and i have two different answers and i would like to know if either of them is right. you in advance. a^2 - b^2 + 25 + 10a

Solve each quadratic equation by factoring and using the zero product property. n^2 - 49 = 0

What is the explicit rule for the sequence in simplified form? −1,−4,−7,−10,−13… an=4−5n an=−4−3n an=2−3n an=−6−5n