115 students are going on a field trip. how many buses do they need if each bus holds 30?

a.3
b.4
c.5
d.6

What is the anwers for 9+2x=5x-3-x

Luke wants to reduce the area of his rectangular garden by 1/4 the expression 14/w can be used to represent this change. what is another way to write this expression?

The architect's side view drawing of a saltbox-style house shows a post that supports the roof ridge. the support post is 8 ft tall. the distance from the front of the house to the support post is less than the distance from the post to the back of the house. how far from the front of the house is the support post positioned?