A book club wants to raise $5,000 during a dinner fundraiser. The club members have sold 323 adult dinners at $10.75 each. The cost of a child dinner is $5.50. How many child dinners will they need to sell to reach their target amount?

Expresa commuter train leaves downtown sation and travels at a average speed of 55 miles per hour towards the north side sation, which is 50miles away. thirty minutes later, express commuter train #7 leaves north side and travels at a average speed of 35miles per hour towards downtown sation. at the moment the two trains pass each other, how far(in miles) is train #12 from the downtown sation and how long(in minutes) has the #12 train been traveling