Answer:
the answer to part is 112.5 and part b is 4612.5 dont completely trust me though
Answer:
18y^3 + 24y^5.
Step-by-step explanation:
6y^3(3 + 4y^2)
= 6*3 y^3 + 6*4 y^(3+2)
= 18y^3 + 24y^5.
The correct answer is y=2/3x+4 which is the last option :)