Answer:
1) not a function
2)function
3)not a function
4)function
I do not know the answer of 6 and 7
Step-by-step explanation:
Given that:
Length (l) = 13 cm
Width (w) = 8 cm
Perimeter of the rectangle = 2(l + w) units
P = 2(13 + 8)
P = 2 (21)
P = 42
$21.75
It says he spent his earnings on lunch.
