t takes Audrey 35 hour to paint 25 square yards of wood to be used for making shelves. How many square yards can she paint in 1 hour?

set up a porportion,

3/5 hours / 2/5 square yards
1 hour / x square yards

simplify by cross multiplying

3/5x = 2/5(1).
 3/5x = 2/5.
 3/5/3/5x = 2/5/3/5
x = 10/15
x = 2/3

so she can paint 2/3 square yards in 1 hour. hope this helps!