(a) At swim practice, Lucas swam n laps, took a break, and then swam c more laps. Write the expression that represents the total number of laps that Lucas swam. List the keywords and the operations, write the math expression and provide explanation of how you solved.
(b) Sadie brought 9 marbles to the park and put them together with Juliana’s u marbles. They then decide to share them equally with 10 friends. List the keywords and the operations, write the math expression and provide explanation of how you solved.
(c)Gerald ran m miles yesterday. Amanda ran 2 miles less than half the miles that Gerald ran. Write an expression that represents the number of miles that Amanda ran. List the keywords and the operations, write the math expression and provide explanation of how you solved.