At 4: 00pm on a sunny day, a stick 2 feet tall casts a shadow 5 feet long. at the same time , a tree nearby casts a shadow of 55 feet long. what is the height, in feet, of the tree

For one history test, keith had to answer 40 questions. of these 40 questions, keith answered 28 of them correctly. what percent did keith get on his history test? round your answer to the nearest tenth if necessary

The midpoints of the sides of the large square are joined to form a smaller square. what is the area of the smaller square

Janie has $3. she earns $1.20 for each chore she does and can do fractions of chores. she wants to earn enough money to buy a cd for $13.50.