Answer: He had 24.28 m².
Step-by-step explanation:
1. He bought 3 rolls of regular wrapping paper with 6.7 m². Then the total of this paper is:
[tex](3)(6.7m^{2})=20.1m^{2}[/tex]
2. He also bought a roll of fancy wrapping with 4.18 m². Therefore, to calculate the amount of paper he had together (which you can call [tex]x[/tex]), you must add 20.1 m² and 4.18 m², as you can see below:
[tex]x=20.1m^{2}+4.18m^{2}\\x=24.28m^{2}[/tex]
