With the wind a helicopter travelled 300 miles in 1 hour 40 minutes. the return trip, against the wind, took 20 minutes. find the wind speed and air speed of the helicopter.

Christina can paint 420 square feet in 105 minutes. which unit rate describes the scenario?

At the "no mutants allowed" country farm, every sheep has 4 legs, every chicken has two legs, and all animals have only 1 head. asked to count how many sheep and chicken are in the fields, a farm boy reports back that there are 140 feet and 50 heads. how many sheep and chicken are there? there are sheep and chicken at the farm.

Kira looked through online census information to determine the overage number of people living in the homes in her city what is true about kira's data collection?