It should open up because the a which is 4 is positive
There are 60 girls 20 boys in this equation.
Answer:
197+n = 429
Step-by-step explanation:
He starts with 197, he adds his salary, he ends with 429
197+n = 429
1. The point where x and y axis meet is the intersect, origin of the coordinate system (0,0)
2. m<A and m<D = 90 then <A and D are complementary angles
3. 180 angle or linear rays
4. Obtuse angle measure more than 90
5. Segment of equal lengths are congruent segments
6. Lines that meet at a 90 angle are perpendicular
