In the following, write an expression in terms of the given variables that represents the indicated quantity. Complete parts a through g. a. The cost of having a plumber spend h hr at your house if the plumber charges $30 for coming to the house and Sx per hour for labor. The expression for the cost of the plumber coming to the house is (Simplify your answer.) b. The amount of money in cents in a jar containing some nickels and d dimes and some quarters if there are 6 times as many nickels as dimes and twice as many quarters as nickels. cents. The expression for the amount of money in the jar is (Simplify your answer.) c. The sum of three consecutive integers if the greatest integer is x dollars. The expression for the sum of the three consecutive integers is (Simplify your answer.)