4. Marlisa has 23 seashells in her collection. She collects s more shells during a trip to the beach. Then she doubles the number of seashells in her collection by buying new shells at the souvenir shop Write an expression to find out how many seashells Marlisa has after her visit to the souvenir shop.​

Adding and subtracting matricesfind the value of each variable. x = and y = would

Achemist has 200 ml of a 10% sucrose solution. she adds x ml of a 40% sucrose solution. the percent concentration, y, of the final mixture is given by the rational function: the chemist needs the concentration of the final mixture to be 30%. how many milliliters of the 40% solution should she add to the 10% solution to get this concentration?

Olga used 100 ounces of flour to make 225 muffins. how many ounces of flour will be used to make 300 muffins?