If y varies directly as x and the constant variation is -2, which equation represents this relationship? please answer by 11:59 10-5-2020

The pressure exerted on the walls of a container by a gas enclosed within it is directly proportional to the temperature of the gas. if the pressure is 6 pounds per square inch when the temperature is find the pressure exerted when the temperature of the gas is 380 degrees f show work for the

Pam buys a sleeve of ball bearings for her skateboard. each of the bearings is 1 1/5 inches wide. the sleeve is 9 3/5 inches long. how many ball bearings are in the sleeve? show your work.

Lines a and b are perpendicular. if the slope of line a is 3, what is the slope of line b?