How many stages needed to have powerful amplifier?​

When you collaborate or meet with a person or group online, it is called

Dave has to create animations for a game. which tool can dave use?

After you clean an engine with hot water spray, it seems to stall; when it doesn't stall, it's idling noisily. technician a says to check for loose bolts on the flex plate near the torque converter. technician b says to wipe down the spark plug wires and the distributor cap. who is correct? a. technician a b. both technicians a and b c. technician b