Find the solution to the equation below using substitution and put it in simplest form. a = (-7/4) b = (2/5) c = (-1 2/3)

a+b*c

Do not comment if you aren’t going to . create a real-life situation and create a system and show how it might be modeled algebraically with a system of equations (or inequalities) show all work include a few sentences explaining the situation, your variables of choice and what each represents, and how you would set it up and solve it algebraically. !

Acomputer store bought a program at a cost of $10 and sold it for $13. find the percent markup

2.5 milligrams is equivalent to how many grams