Jon has 12 pennies. lucy has 17 pennies. how many more pennies do the need to have 75 pennies altogether ?

For what values of the variable x is the expression square root of 7x+14+ square root of 7-x a real number?

40) linda was making chocolate truffles for the first day of school. the recipe for 20 chocolate truffles is: i cup of cream 2 cups of dark chocolate she noticed this will not be enough truffles for the 42 sure that all students in each homeroom next year. to be sure that all students receive a truffle, linda must adjust her recipe. a. complete the recipe for 42 truffles cups of cream - cups of dark chocolate work:

What is the solution to the division problem below x3+x2-11x+4/x+4