9/5= 1.80
1.80x5= 9
so, each light bulb costs 1.80
1.80x7=12.6
the answer is 12.6
I believe that it belongs to the integer set
19.) Least to greatest:
Luxembourg
Singapore
Australia
Egypt
Brazil
Answer:
three boys to 1 girl
Step-by-step explanation:
a
Answer:

Step-by-step explanation:
When two or more quantities have the same exponents, their bases can be multiplied together.