Janice wants to buy a tie as a birthday girft for her dad. a store has discounted all of its ties so that they are all 25% off the original prices. determine the discounted price of a tie that originally cost $20.

According to modern science, earth is about 4.5 billion years old and written human history extends back about 10,000 years. suppose the entire history of earth is represented with a 10-meter-long timeline, with the birth of earth on one end and today at the other end.

Three times the sum of a number and seven is negative thirty-six. what is the number?

Abus travels 36 miles in 45 minutes. enter the number of miles the bus travels in 60 minutes at this rate.