Use bidmas
so in order of what to do its Brackets, Indices, Division, Multiplication, Add, Subtract
hence you as (12/4 - 1) is in brackets, and 12/4 is division, you do 12/4 = 3
3 - 1 = 2
2 - 5 - 2 = - 5
You would do 150/15=10 since this is a percent change it to a decimal(.10) to check do 150x.10=15 and 15/.10=150
Greatest common factor is 1 for the first one and the second one is also 1
Answer:
5
Step-by-step explanation:
When you divide 25/5 the answer is 5 dollars per store