Answer:
Answer is given below with explanations
Step-by-step explanation:

<em>HAVE A NICE DAY</em><em> </em>
<em>THANKS FOR GIVING ME THE OPPORTUNITY</em><em> </em><em>TO ANSWER YOUR QUESTION</em><em>. </em>
Answer:
an expression of more than two algebraic terms, especially the sum of several terms that contain different powers of the same variable(s).
No se pero me gustaría alludar
For A: 1 senior; 1 infant; 2 children; 4 adults, out of 8 people
for B: 1 senior; 3 infants; 6 children; 6 adults, out of 16 people
for D: $43.75
for E: $76.25