Answer:
The answer is below
Step-by-step explanation:
The electrical resistance R of a wire varies inversely with the square of its diameter d:
R ∝ 1 / d
Let k represent the constant of proportionality, hence we can represent the statement as an equation:

Answer:
$400
Step-by-step explanation:
450-50=400 50 less than 450 is 400
35 x 12= 420 Multiply 35 by 12. that equals 420
Answer: A
Step-by-step explanation:
Answer:
10y
Step-by-step explanation:
9 + 1 = 10
9y + y = 10y