Alyssa took a math test with 20 questions and she answered 16 questions correctly. in order get an a she needs to answer at least 90 percent of the questions correctly

she got 80% . in order to get 90% she would have had to get 18 questions right

Step-by-step explanation:

20=100%

2=10%

2×9=90%

18=90%

18

step-by-step explanation:

draw the shape and you will see that f and k are actually at adjacent vertices (points of the hexagon that are neighboring).   so find the distance between (1,2) and (4,2).   that is easy since (1,2) and (4,2) is just a vertical distance to count, which is 3.   it is a regular polygon which means all sides are congruent.   you have 6 sides (hexa) so multiply 6 by 3 to receive 18.