State whether the following is reasonable or not. Explain your answer. Josefina gave away 130% of her stamp collection

Jackie purchased 3 bottles of water and 2 cups of coffee for a family for $7.35. brian bought 4 bottles of water and 1 cup of coffee for his family for $7.15. how much does each bottle of water cost? how much does each cup of coffee cost? i need this done

100 points, hi, i’m not sure what to do here,the data doesn’t seem to be quadratic .? can anyone me, in advance

Find dy/dx using implicit differentiation ln(20+e^xy)=y