A lawn and garden store creates three different potting mixes sold in 20-pound bags. Mix A contains 12 pounds of peat, 5 pounds of perlite, 3 pounds of organic material, and earns a profit of $2 per bag. Mix B contains 10 pounds of peat, 6 pounds of perlite, 4 pounds of organic material, and earns a profit of $5 per bag. Mix C contains 8 pounds of peat, 8 pounds of perlite, 4 pounds of organic material, and earns a profit of $6 per bag. There are 1,248 pounds of peat, 1,120 pounds of perlite, and 760 pounds of organic material available every week to make these potting mixes. For what values of h will a sensitivity analysis on the effect of a change of h pounds of peat be valid? For what values of h will a sensitivity analysis on the effect of a change of h pounds of peat be valid? ☐ shs (Simplify your answers. Type integers or simplified fractions.)