Answer:
Percentage Change Formula
Step-by-step explanation:
Percent change can be applied to any quantity you measure over time. If the price increased use the formula
((New Price - Old Price) / Old Price) × 100
If the price decreased flip the first part to
((Old price - new price)
and then follow the rest of the formula.
-720
27 hot dogs
13 popcorns
(2.25 x 27) + (1.75 x 13)
60.75 + 22.75
= 83.50
your question doesn't make sense if an electrician came to your house it would cost $40 then $55 dollars per hour but there is no way that you can solve that (40+(55•2)=150+55=205 which is already over $190 dollars
