Answer:
$20
Step-by-step explanation:
1.25 x $16 = $20
multiply the weight by the price per weight unit (kg).
Answer:
B
Step-by-step explanation:
w=width
l=w+3
(w+4)=width+walkway(both sides)
(w+7)=length+walkway(both sides)
Answer:
-7 = w
Step-by-step explanation:
System A has ONE real solution
System B has NO real solutions
System C has ONE real solution