What’s the answer to this? Hurry please

$5400 is? invested, part of it at 11? % and part of it at 8? %. for a certain? year, the total yield is ? $522.00. how much was invested at each? rate?

Pls math have no ideamultiply and simppify. 2x^2y^3z^2 • 4xy^4x^2

The length of a rectangle is 2 inches more than twice it’s width. if the perimeter of the rectangle is 70 inches,find it’s length and width