Which will result in a difference of squares? a. (–7x + 4)(–7x + 4) b. (–7x + 4)(–7x – 4) c. (–7x + 4)(4 – 7x) d. (–7x + 4)(7x – 4)

Can someone check if i did this right since i really want to make sure it’s correct. if you do you so much

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

Apool measures 12.3 feet by 16.6 feet. if the longer wall of the pool has a diagonal of 17.8 feet, what is the volume of the pool? (round to nearest tenth)