Which polygon has interior angles whose measures sum to 720°?
a. hexagon
b. heptagon
c. octagon
d. nonagon

The jurassic zoo charges $14 for each adult admission and $5 for each child. the total bill for 77 people from a school trip was $565. how many adults and how many children went to the zoo? i

Solve this riddle: i am an odd number. i an less than 100. the some of my digit is 12. i am a multiple of 15. what number am i?

On which number line are -3 and its opposite shown