Answer:
6 greeting cards for 23.40
Answer:
7
Step-by-step explanation:
3 * 7 = 21
21 - 7 = 14
7*2 =14
Answer:
x=4 y=0
Step-by-step explanation:
You add the two equations together to get 3x=12. You derive x=4 and y=0 from that.
3420°
explanation:
the equation of the sum of interior angles are (n-2)x180
polygon above has 21 sides so you sub n as 21 and plug the equation in the calculator
18 ? am not really sure tho its kinda difficult lol