help ASAP don't answer just for points, and have an explanation okay? e.x: writing the math out

Answer:
Josh spent $29.87
Step-by-step explanation:
$12.99 + 3.75×4.5 = $29.865 ≈ $29.87
Answer:
Okay, so what you first want to do is is find out what 3.75 times 4 1/2 is. First you can start by transitioning 4 1/2 into decimal form like so:
And then multiply 3.75 times 4.5
Then add you quotient to the amount of money that he paid for the flat rate:
Answer = $26.86
Step-by-step explanation: