list all the subsets of  {1,2,∅}   and {{R}} R= real number

provide a recursive definition for the set Y of all negative multiples of 7.

Select all expressions that are squares of linear expressions (perfect squares). Group of answer choices x2+16x+36x2+16x+36 (12x+4)2(12x+4)2 (2d+8)(2d−8)(2d+8)(2d−8) p2−6p+9p2−6p+9 x2+36

Write the set of integers that is greater than -3 but less than or equal to 5 using both notations.