20% off means you pay 80% of the price so you multiply by 0.8, and 7% tax means you multiply by 1.07
Resulting cost = 18.99*0.8*1.07 = 16.26
Hope this helps let me know if im wrong!
The answer is c I hope that helps
It is A because
x/6 gives pizza by 1 guest and adding0.5 gives total expence
No 5/8 is not greater then 2/3, 5/8 is just 1/24 smaller then 2/3.