Which expression is equivalent to ? 6.52 – 6. 7(3+6) A. (60)2 · 7(9) B. 6(10)2 - 21 +42 C.6(25)+ 7(9) D. 150 - 21-42​

How many different three-digit numbers can be formed using the digits 1 comma 2 comma 9 comma 6 comma 4 comma 3 comma and 8 without repetition? for example, 664 is not allowed.

Atransformation t : (x, y) (x-5,y +3) the image of a(2,-1) is

Which of the following constants can be added to x2 - 3x to form a perfect square trinomial?