For this case you can solve the problem by applying a simple rule of three in which we have
520 ---> 100%
800 ---> x
Clearing x we have
x = (800/520) * 100 = 154%
the percentage increase in cost was
154-100 = 54%
answer
the percentage increase in cost was 54%
Answer:
50 units.
Step-by-step explanation:
Answer:
4×3=12 total cost for the drinks
12.75 + 12= $24.75 total cost for the pizza and drinks combined