6x11=66ft
3x14=42ft
Add the answers together
42+66
= 108 squared feet
I suggest if you have any look back at your notes like I do.
Standard form is ax+by=c
2x+2y=24 is in standard form
The 3rd one
-4.6-(0.4+7.2)
10% = 25
1% = 25 ÷ 10 = 2.5
100% = 2.5 x 100 = 250
Answer: 250 t-shirts