If dog food costs $0.88 per pound, how much dog food can you buy with$100

In the rectangle below ac=30 units what is de

The square pyramid has a volume of 441 cubic inches. what is the value of x? 1/7x is the height x is the base

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