Two simple pendulums, a and b, are each 3. 0 m long, and the period of pendulum a is t. Pendulum a is twice as heavy as pendulum b. What is the period of pendulum b?

How many liters of 60% alcohol solution should be added to 40 liters of a 20% alcohol solution to make a 50% solution?

+++30 points me in a society that favors economic equity over economic freedom, who would benefit? explain

Aschool cafeteria has 40 tables. 35% of the tables have 8 chairs at each table. the remaining 65% of the tables have 6 chairs at each table. complete the model. then complete the statements to find the total number of chairs in the cafeteria.