Prove that: if a^3+b^3 is a perfect square
then a+b cannot be written as the product of two distinct primes

In other words
if a^3+b^3=n^2 for n€N
a+b=/=pq , p, q€N and p=\=q ​

When you answer this can you explain

In the sixth grade 13 out of 20 students have a dog if there are 152 sixth grade students how many of them have a dog

Asunflower was 20 1/2 inches tall. over the next 6 months, it grew to a height of 37 inches tall. what was the average yearly growth rate of the height of the sunflower? ? plz write a proportion to solve i will give you 100 points