Respuesta :
Answer:
A(d) + B(d)
12d+d^2
Step-by-step explanation:
it wants the total money so you add 10d and 2d but you can't add d^2 because it has an exponent and its the only one that has one
Answer:
B(d) = T(d) - A(d)
B(d) = d^2 + 8d
Step-by-step explanation:
got the answer from khan academy