When a number n is decreased by 12 and then the result is multiplied by 3, the produt is equal to 21. write an equation and solve it to find the value of n.

Find the value of x for which the lines are parallel.

Adesigner charges a one time fee of $200 plus $40 an hour for each project. write an expression to represent how much money the designer will make for a project

Find the missing dimension! need asap! tiny square is a =3025 in ²