5) Three friends go to the local farmer and market. Latasha spends 3.35. Helen spends 4 times as much as Latasha. Dada spends 7.50 more than Helen. How much do Dada and Helen spend?

Latasha spends $3.35, so Helen spends 4 times that, which is (4 \times 3.35 = 13.40). Dada spends $7.50 more than Helen, so he spends (13.40 + 7.50 = 20.90). Therefore, Helen spends $13.40 and Dada spends $20.90.