please answer each part of the question. thank you

Qualitative variables (nominal or ordinal) can be introduced into regression models and are know as factors. True False The intensity of a qualitative variable in a multivariate equation is known as a level. True False If a multivariate model has two independent variables (one quantitative and one qualitative) that are significant, the model will be represented by a series of multiple parallel lines. True False The multiple coefficient of determination represents the amount of variation in y that will be explained by the total variation in all independent variables. True False At test on an individual coefficient that has a corresponding p value of less than 5% would indicate that a particular coefficient is significant. True False