Plz help due tomorrow

The square pyramid has a volume of 441 cubic inches. what is the value of x? 1/7x is the height x is the base

How does a low unemployment rate affect a nation's economy? a. the nation has a higher number of productive resources. b. the nation can spend more money on for unemployed people. c. the nation can save money by paying lower salaries to a large workforce. reset

Sara made $253 for 11 hours of work. at the same rate how much would he make for 7 hours of work?