THIS IS URGENT be and ángel and solve this please<3

Which best explains why this triangle is or is not a right triangle?

Graph the line with the given slope m and y-intercept b. m=-3,b=1

Jack is considering a list of features and fees for current bank: jack plans on using network atms about 4 times per month. what would be jack’s total estimated annual fees for a checking account with direct paycheck deposit, one overdraft per year, and no 2nd copies of statements? a. $44 b. $104 c. $144 d. $176