2 +27+-3 + 5x
What is this in standard form?

What is the rate for one gallon of gasoline

Which point-slope form equation represents a line that passes through (3,-2) with a slope of -4/5

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?