Whenever two lines intersect, they form two pairs of vertical angles. Vertical angels have a common vertex, but they are never adjacent angles. Fin, vertical angles are always congruent.
The answer to your problem is X= -155/54
The percent it needs to.grow each year is.4 percent because the investment wants.to.increase by factor.of.5. in 20 years. 20 divided by 5 would 4 percent each year.
See attached picture with the answer
There are 12 possible combinations because you can use each slice of pizza with a different drink
Hope this helps :)<span />
