Some one me on this question! it would mean so much! you!

Plz hurry evaluate the expression a+b where a=8 and b=19

The police chief wants to know if the city’s african americans feel that the police are doing a good job. identify the management problem (i.e dependent variable) and identify the independent variable.

You eat $0.85 for every cup of hot chocolate you sell. how many cups do you need to sell to earn $55.25