Expand each of the following expressions.(step by step) (a) (x – 3)(x + 1)
(b) (x + 2)(x + 4)
(c) (1 – 7x)(11x – 4)
(d) (4 – 3x)(2 – 3x)
(e) (2x – 5)(7x – 11)
(f) (6 – d)(2d – 5)

Anna is constructing a line segment that is congruent to another segment ab. for the construction, which tool should be used to mesure segment ab

Prove the divisibility of the following numbers: 25^9 + 5^7 is divisible by 30.also, read as (25 to the power of 9) + (5 to the power of 7) is divisible by 30. blank x 30what is the blank? ( it should be expressed in exponent form)

0if x and y vary inversely and y=6 as x=7, what is the constant of variation?