The axis of symmetry is -6 because the x always lies.
The system of equations that represent the situation are 1.20R + 2B = 70, and R + B = 90.
<h3>What are the system of equations?</h3>
The system of equations are sets of equations that have to be solved simultaneously in order to determine their required values. They are often referred to as simultaneous equations.
To learn more about simultaneous equations, please check: brainly.com/question/25875552
Your answer:1/5 Hope this helps!