What is congruent and supplementary??

What is the least common multiple of 6 and 17?

Aswim teacher sells lesson packages. the best deal has the highest ratio of lessons to total cost.swim lesson packagesnumber of lessons total cost$10$4010 1 $8015$80which package is the best deal? l lesson for $105 lessons for $4010 lessons for $8015 lessons for $80mark this and returnsave and exit

Iwill give ! if m∠a=59 and m∠3=81°, what is m∠b? m∠b= _[blank]_°