Which expression shows the product of 1.5 x 106 and 12,000? A. 1.8 x 1018
B. 1.8 x 1010
C 1.8 x 10°
D 1.8 x 1024

What is the reflection image of (5,-3) across the line y = -x?

Find the perimeter of the triangle with vertices  d(3, 4),  e(8, 7), and  f(5, 9). do not round before calculating the perimeter. after calculating the perimeter, round your answer to the nearest tenth.  

Idon't get undoing if its pass adding and subtracting so can someone ? x-2 over 5 = 18