Step-by-step explanation: Lilian planted "p" plants and cubed them (³) so it would be p³. Then, she added two more plants so it would now be p³+2. Then, you have to solve it. If p=3 then the expression would become 3³+2. 3³ is basically 3×3×3 which is 27. 27+2 would be 29.
Answer: D : p³ + 2 when p=3 the number of plants is 29