HELP! IN TEST RN

Which represents where f(x)=g(x)?

Given the choice between receiving $1.000.000 in one month or a single penny-doubled everyday for the period of one month; which option would you choice? show your work to support your answer. (assume that 1 month=30 days)

The border line of the linear inequality 4x + 7y < 5 is dotted true or false?

How many quarts of a 50% solution of acid must be added to 20 quarts of a 20% solution of acid in order to get a 40% solution of acid?