120 students of a hostel food enough for 60 days. if 30 more students joined after 15 days. how long will the remaining food last.​

Which expression gives you the distance between the points (5,1)and(9,-6)

When keisha installed a fence along the 200 foot perimeter of her rectangular back yard, she left an opening for a gate.in the diagram below, she used x to represent the length in feet of the gate? what is the value? a. 10 b. 20 c. 25 d. 30

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