Please help to solve this question
Find H. C.F
i) x^3-y^3, x^6-y^6, x^4+ x^2y^2+y^4

0if x and y vary inversely and y=6 as x=7, what is the constant of variation?

Helll ! 1,400 tons of wheat of two different varieties was delivered to the silo. when processing one variety, there was 2% of waste and 3% during the processing of the second variety of wheat. after the processing, the amount of remaining wheat was 1,364 tons. how many tons of each variety of wheat was delivered to the silo?

Jayne is studying urban planning and finds that her town is decreasing in population by 3% each year. the population of her town is changing by a constant rate.true or false?