13. A model of a car is built. The length of the model car is 4 inches. The length of the
actual car is 16 feet.
a.
What scale was used to create the model?
b.
What is the scale factor for this model?

Step-by-step explanation:

i want to say US metric system for a and divide by 4 and replace feet with inches to create the model

if you use photomath right away it will give you the answer not like this app that you have to wait for people.

because linear equations are a lot simpler than quadratics equations, and linear equations formula is a lot easier to memorize. that's why i think they're harder.