-√2 is the _ Say it can be root if yes say why?if no say why?

Aclothing store has the sign shown in the shop window. pani sees the sign and wants to buy 3 shirts and 2 pairs of jeans. the cost of each shirt before the discount is $12, and the cost of each pair of jeans is $19 before the discount. write and simplify an expression to find the amount pani pays if a $3 discount is applied to her total

What does independent variable and dependent variable mean in math?

The difference of two numbers is 40. find the numbers if 0.3 parts of one number is equal to 37.5% of the other one.