Y=7x+15 y=-2x+6 substitution show your work

Describe the possible echelon forms of the standard matrix for a linear transformation t where t: set of real numbers is onto.

What happens to the area as the sliders are adjusted? what do you think the formula for the area of a triangle is divided by 2?

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