The expression x2−25 is equivalent to which of the following expressions? A.
(x−5)2
B.
(x+5)2
C.
(x−5)(x+5)
D.
(2x−5)(2x+5)

For a field trip to the zoo, 4 students rode in cars and the rest filled nine busess. how many students were in each bus if 472 students were on the trip

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

Identify the expression equivalent to 4(x + x + 7) − 2x + 8 − 4 by substituting x = 1 and x = 2.