6. A 40 -pound bale of hay costs \( \$ 12 \). Find the unit rates. How much hay can be purchased for \( \$ 1 \) ? How much does 1 pound of hay cost?

To find the unit rates, first, determine the cost per pound of hay. Since a 40-pound bale costs \( \$ 12 \), divide the total cost by the total weight: \( 12 \div 40 = 0.30 \). This means 1 pound of hay costs \( \$ 0.30 \). Next, to find out how much hay can be bought for \( \$ 1 \), take the reciprocal of the price per pound: \( 1 \div 0.30 \approx 3.33 \). So, you can purchase approximately 3.33 pounds of hay for \( \$ 1 \). Happy hay buying!