What is the total number of moles of products involved in the following reaction? CaCO3 (s) + 2HCl (aq) → CaCl2 (aq) + CO2 (g) + H2O (g)

4+6x-3x^3 in standard form with explanations because i don’t understand

Carson has only $20 bills and $10 bill in her wallet. the total value of the bills is $50. she has 1 more $20 bill than $10 bills. how many each kind of bill does carson have? a. one $20 and two $10 bills b. two $20 bills and one $10 bill c. one $20 bills and three $10 bills d. two $20 bills and two $10 bills

What does the relationship between the mean and median reveal about the shape of the data