a party company hs chairs and tables for rent. The total cost to rent 3 chairs and 5 tables is $42. the total cost to rent 9 chairs and 7 tables is $72. What is the cost to rent each chair and each table?

What is the simplified form of 7 √x • 7 √x • 7 √x • 7 √x?

Assume that the weights of quarters are normally distributed with a mean of 5.67 g and a standard deviation 0.070 g. a vending machine will only accept coins weighing between 5.48 g and 5.82 g. what percentage of legal quarters will be rejected? round your answer to two decimal places.

In need of in the diagram, ∠abc is a right angle. ∠dbc = 30°27'40". find the measure of ∠abd.