Can u help me and ty :)

When a rectangle is dilated, how do the perimeter and area of the rectangle change?

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.

At your job you're paid $50 per week plus $3 per sale at least how many saled do you need to make in order to have over $250