Answer:
1. P=10+2w;
2. P=2l+6.
Step-by-step explanation:
Mr. Frame uses the function [tex]P=2l+2w[/tex] to find the perimeter, where l is the length and w is the width.
1. If l=5 ft, then
[tex]P=2\cdot 5+2w,\\ \\P=10+2w.[/tex]
2. If w=3 ft, then
[tex]P=2l+2\cdot 3,\\ \\P=2l+6.[/tex]
