The half-life of a particular element is 10 days. If you begin with 40 grams of the element write an exponential decay function that models the decay of the element. Let t =1 represent one half life (or 10 days). How much of the element is left about 40 days?
WILL MARK BRAINLIEST

Which graph represents an even function?

What expression is equivalent to (2x-1)(x-3)?

Efficient homemakers ltd. makes canvas wallets and leather wallets as part of a money-making project. for the canvas wallets, they need two yards of canvas and two yards of leather. for the leather wallets, they need four yards of leather and three yards of canvas. their production unit has purchased 44 yards of leather and 40 yards of canvas. let x be the number of leather wallets and y be the number of canvas wallets. draw the graph showing the feasible region to represent the number of the leather and canvas wallets that can be produced.