A scale drawing for a rectangular parking lot measures 4 cm by 6 cm. The scale is 1 cm : 4 m. What is the area of the actual parking lot?

Henry is an avid reader, he devours 90 pages in half an hour how many pages has henry read per minute?

You're locked out of your house. the only open window is on the second floor, 25 feet above the ground. there are bushes along the edge of the house, so you will need to place the ladder 10 feet from the house. what length ladder do you need to reach the window?

How many 3-digit numbers can you write using only digits 1 and 7? (of course, digits can repeat.) how many 3-digit numbers can you write using only digits 1 and 7? (of course, digits can repeat.)