Sean has a collection of coins. one tenth of the coins are from europe. thirty-two hundredth are from asia. the rest are from africa. write a decimal to show the total part of the coins that are from europe or asia.

One tenth is 1/10 these are the coins from Europe (0.1)
32/100 is the coins from Asia (0.32)
You add these together to get 42 hundrdths or 42/100 (0.42)
42/100 is equal to 0.42 the which is the total amount of coins from Europe and Asia 

$171.62 for social security.

$40.14 for medicare.

Step by step explanation:

We have been given that Marika Perez’s gross biweekly pay is $2,768.

To find the amount deducted from her pay for social security tax, we will find 6.2% of her biweekly pay.

Therefore, $171.62 is deducted from Marika's biweekly pay.

Now let us find 1.45% of $2768 to find the amount of medicare deducted from her pay.

Therefore, an amount of $40.14 is deducted from Marika's biweekly pay for medicare.