to be honest i 'am capable of solving the above problem without any dificulty as they are pretty straight forward.to answer your question i don't have the time

to be honest i 'am capable of solving the above problem without any dificulty as they are pretty straight forward.to answer your question i don't have the time to go to a university nor a local library as i need to work to feed my family.but i can buy sufficient time to study on my own .anyways thanks a lot for your advice ,if you have further recomendations i'll be really glad to hear from you