Question

(4xy-9z);(3xy-18z) ,friends tell me answer​

Answer 1

Answer:

what should I perform addition, substraction,division ,what????

please post proper questions henceforth.

I'm felling Sorry

Answer 2

Answer:

When clouds are white (and many are not), “it's because light from the sun is white, a combination of all the colors of the rainbow,” said Michael Kaufman, professor of physics and astronomy at San Jose State University in California. As light moves through the clouds, it is dispersed by water droplets.