What is the property of 234+(-234)=0

If the slope of one line equals the slope of another line then ? a) the two lines are intersecting lines b) the two lines are perpendicular lines c) the two lines are parallel lines d) the two lines always have very steep slopes

An equation where variables are used to represent known values—function notation true or false

In a class, there are 12 girls. if the ratio of boys to girls is 5: 4 how many boys are there in the class