A collection of coins contains only 10-cent and 5-cent coins. There are x 5-cent coins in the
collection. Find the total value of the coins if there are seven
5-cent coins for every three 10-cent coins.​

where are the options?

step-by-step explanation:

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%

its a straight line parallel to the time axis

it would open into a square depending on the type of envelope i’m not sure about the second part