Is 3240 a perfect cube? if not then by which smallest number should 3240 be multiplied so that the product is a perfect cube?

The sum of these consecutive integers is equal to 9 less than 4 times the least of the integer. find the three integers

Afactory buys 10% of its components from suppliers b and the rest from supplier c. it is known that 6% of the components it buys are faulty. of the components brought from suppliers a,9% are faulty and of the components bought from suppliers b, 3% are faulty. find the percentage of components bought from supplier c that are faulty.

As a self-employed seamstress, you know that it takes 7 yards of material to make 3 jackets. you bought 15 yards of material to make 7 jackets. did you buy enough material? if not, how much were you over or under?