Which expressions are equivalent to z + (z+6)
select:
(z+z) + (z+6)
(z+6) +6
none of the above

[15 points]find the least common multiple of the expressions: 1. 3x^2, 6x - 18 2. 5x, 5x(x +2) 3. x^2 - 9, x + 3 4. x^2 - 3x - 10, x + 2 explain if possible

3x = 729 solve for x plz . it's urgent. will mark

Choose the correct translation for the following statement. it is at most ten. x< 10 x< 10 x> 10 x> 10