Please help! Write an equation of the line passing through the point (6,-4) that is perpendicular to the line y=1/3x-9

The size of a certain cell is 2.5*10^-9m. another cell is 1.5*10^3 times larger. how large is the larger cell in scientific notation?

Complete the solution of the equation. find the value of y when x equals -5. -4x - 8y = -52

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