Which expression is a trinomial of degree 1?

6 + x – y

3x – y

What is the missing reason in the proof? segment addition congruent segments theorem transitive property of equality subtraction property of equality?

Mrs.sling bought a pound of green beans for $1.80. how much will mrs.tennison pay for 3 1/2 pounds of green beans?

A50-foot ladder is leaning against a vertical wall. if the base of the ladder is 45 feet from the base of the wall, find the angle the bottling of the ladder makes with the ground.