Prove the polynomial identity. (3x + 1)– 2 (3x + 1) = (3x + 1) (3x – 1)

Identify a1 and r for the geometric sequence an= -256(-1/4) n-1

Acompany charges $0.10 for each letter engraved. bobby plans to spend no more than $5.00 on the engraving on a jewelry box. write and solve an inequality to find the maximum number of letters he can have engraved.

Arectangle plot measure 20ft. by 30ft. a 3-ft.-wide sidewalk surrounds it.find the area of the sidewalk.