What variable(s) are classified as qualitative variable(s)?

Step-by-step explanation:

A qualitative variable is referred to as categorical variable, they are variables which have values but are not numerical. The values are names or labels, categories such as colors, states, cities, breeds,

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.

its 50 miles away from the starting point