Step-by-step explanation:

Answer:
x = -16/3 = -5.333
Step-by-step explanation:
I hope this is right!
I need to write 20 charachters apparently but its 4x^3. Multiply the coefficient by the exponent and take 1 from exponent to find derivative
Answer:
54-12*6=b
Step-by-step explanation:
54-12*6=b
54 for after total discount,12 off purchase, each books is $6, and B for representation of number of books.