Ax + b = c solve for x

For the feasibility region shown below find the maximum value of the function p=3x+2y

$30 to spend on dinner tax and gratuity at mos restaurant rax is 6% and they give a 15% tip on the total bill after taxes thier dinner cost $21 which statement correctly explains wether andrew and kate have enough money to pay their bill

What is the answer to this problem? ignore the work. what is the correct answer?