-3a - 4a x 2 + 30 / 3 + 4 x 9a + 1 -5b x 6=

simplify 23x +42x=??

-3a-4a×2+10+4×9a+1-5b×6

-3a-8a+10+36a+1-30b

-11a+36a-30b+10

25a-30b+10

5(5a-6b+2)

23x+42x

=65x

Hope it helps

the answer is c. 23/3

0.16 or 16%

step-by-step explanation:

lets take a coin for example.

if you toss it twice, it has a 1/4 chance of landing on heads both times because 1/2 * 1/2 is 1/4.

with the cards, the chance of picking dog is 0.4. having two people pick one is like picking a card twice in a row. so 0.4 * 0.4 is 0.16, or 16%