Natalie buys a cooper wire that is 3 feet long. The cost of the wire is $1.25 per foot, including tax. What is the total cost, in dollars, of Natalie's wire.

$3.75

Step-by-step explanation:

Given:

Natalie buys a cooper wire that is 3 feet long.

The cost of the wire is $1.25 per foot.

Question asked:

What is the total cost, in dollars, of Natalie's wire?

Solution:

By unitary method:

Total length of wire = 3 feet

Each foot of wire cost = $1.25

3 feet of wire cost = $1.25 3 = $3.75

Thus, total cost of wire is $3.75

i found two solutions,   n = 2 • ± √3 = ± 3.4641

step-by-step explanation: