5x + 4 = 8x + 10, then x = ?

x=-2

Step-by-step explanation:

1st.  move the terms together

5x-8x=10-4

2nd. combine like terms and calculate

-3x=10-4

=-3x=6

3rd. divide both sides by -3:

x= -2

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%