A ceramic artist orders two types of clay. She must spend at least $100 to qualify for free shipping. Earthen red clay costs $0.75 per pound, and porcelain white clay costs $1.10 per pound. To summarize the situation, the artist writes the inequality: 0.75r+1.1w>100, where r is the number of pounds of earthen red clay, and w is the number of pounds of porcelain white clay.