I guess these are easy ish... i need a bit of help

1.On Halloween 3 friends each received 0.7 of a pound of candy. How much candy did they receive total?

2. An old road was 3.9 miles long. After a renovation it was 3.7 times as long. How long was the road after the renovation?

3. Jonathan and Anna must share $20.64 evenly for Fall Festival. How much money will each child receive?

4.The five fifth grade teachers and six fourth grade teachers ordered 2 large pizzas all together for lunch. Each pizza costs $13.75. If we are going to split the cost evenly, how much will each person need to pay?