Two friends, 7 miles apart, start walking toward each other, and they meet in an hour. if one boy walks 1 mile farther in an hour than the other boy, how fast does each walk?

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%

i did it myself and i got 4.2 (b) hope its right

step-by-step explanation: