Can someone help me with this? Thank you so much! I mark as brainliest :)

Add the two expressions 3.8b - 7 and 2.9b + 9 enter your answer in simplified form

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:

Calculate the effective quarterly compound interest rate equivalent to a 1% of monthly compound interest rate.