Answer:
F
Step-by-step explanation:
Your welcome my guy :D
Answer: 20 feet perimeter is the largest allowed
Step-by-step explanation: width=2.5 length=no more than 3x2.5
so find longest possible length allowed...
2.5x3=7.5
calculate largest perimeter allowed...
2(7.5+2.5)=20
Answer: In 4 minutes he will make 5 portraits
Step-by-step explanation:

From the second:
2x-y=4
x=(4+y)/2 and applying this to first:
4+y+3y=12
4y+4=12
4y=8
y=2 and since x=(4+y)/2, x=3 so
x+y=2+3=5
In expanded form that would be 10,000,000 + 6,000,000 + 100,000 + 7,000 + 300 + 20