What are the two ways that we discussed in class that can be used to determine if two expressions are equivalent? A, Subtraction and Simplify
B, Substitution and Subtraction
C, Simplify and Substitution
D, Rationalize and Simplify

Neveah and clint are baking muffins for the bake sale. they need to bake 30 muffins for their display case. clint has baked 4 so far, and neveah has baked 7. how many muffins (m) do they have left to bake? show your work!

Expresa commuter train leaves downtown sation and travels at a average speed of 55 miles per hour towards the north side sation, which is 50miles away. thirty minutes later, express commuter train #7 leaves north side and travels at a average speed of 35miles per hour towards downtown sation. at the moment the two trains pass each other, how far(in miles) is train #12 from the downtown sation and how long(in minutes) has the #12 train been traveling

Which inequality is equivalent to -3x < -12? x < 4 , x < -4 , x > 4, x > -4