What 3+(-4) do i do 3+4 or 3-4 or my teacher said 3 times 4 but it was wrong

Step-by-step explanation:

3+(-4)

= 3 - 4

= -1

If your teacher said 3 times 4, she is wrong.

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%

you forgot an image

step-by-step explanation: