I don't understand this and I need to explain how I calculated my answer this is for a math test HELPPP also pls explain

3.1 or 3 and 1/10 (However u prefer)

Step-by-step explanation:

       $90.60                   $22.65

  =  

12 2/5 hrs of work              ?

Alright im gonna explain the best i can.

First we take the 2 number that are in the same unit (dollars) and divide the bigger one by the smaller one.

Like this:   90.60/22.65           This equals 4

Then we know that number on right (the 22.65)   multiplied by 4 is 90.60.

So we divide 12 2/5 by 4.

Start by converting the 2/5 into 4/10 just bc thats easier to deal with

So we end up with 12 4/10.

Now, divide by 4

which equals 3 1/10 or 3.1 (whichever ur teacher prefers)

$4

step-by-step explanation:

$30×5=$150

$150 minus $130=$20

$20÷5=$4.

hope to and hope that my answer is brainliest.(follow me )