What number is 1000 less than 921, 438 and explain your answer

Lassify the function as linear or quadratic and identify the quadratic, linear, and constant terms. f(x) = (3x + 2)(−6x − 3) linear function; linear term: −21x; constant term: −6 linear function; linear term: −18x2; constant term: −6 quadratic function; quadratic term: 6x2; linear term: 24x; constant term: −6 quadratic function; quadratic term: −18x2; linear term: −21x; constant term: −6

Planning for the possibility that your home might get struck by lighting and catch on fire is part of a plan for ?

Anyone know? will mark brainliest if you're correct!