3.
Which expression is equivalent to 0?
A. O a+(-a)
B. O a-(-a)
C. (a)(-a)
D.

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

What is the measure of ac? 5 units 13 units 26 units 39 units 3x- 2b 6x + 9

Yvaries directly as x. y =90 when x=6. find y when x=13