I need help with the questions that have blank answers

Choose the correct slope of the line that passes through the points (1, -3) and (3, -5)

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

Einstein office equipment has a rental plan for office machines. a fax machine that lists for $722.98 can be rented for 22% of the price annually. the state imposes a usage charge of 3.2%. if stephen hawking travel decides to rent the fax machine, what will its total monthly rental charge be?