Pls help me with these three problems asap. Write a number under the radical (square root symbol) that makes the statement true and then explain why it makes your statement true.

Gretchen is setting up for a banquet. she has 300 chairs and needs to distribute them evenly among t tables. how many chairs should she put at each table? write your answer as an expression.

An automated water dispenser fills packets with one liter of water on average, with a standard deviation of 5 milliliter. the manual says that after a year of operation the dispenser should be tested to see if it needs recalibration. a year later a number of filled packets are set aside and measured separately. it is found that the average packet now contains about 0.995 liters. does the dispenser need calibration? explain your answer.

What value of x is in the solution set of 4x - 12 s 16 + 8x? -10 -9 -8 -7