You want to know the brand of jeans worn mostly by people to 20 to 30 years old. Which of the following surveys is biased?

The diameter of a bicycle's tires is 2.5 feet. How many revolutions of the tires does it take to travel 1 mile? Use 5,280 feet = 1 mile. Round to the nearest tenth

Tatiana saw pigs and chickens. She saw 7 heads and 20 feet. How many pigs did she see? How many chickens did she see?

Two numbers total 26 and have a difference of 6. Find the two numbers

Fill in the blanks so the left side is a perfect square trinomial. That is, complete the square. x^2+12x + = (x+) ^2

Express 686 49/50 as a decimal

A piggy bank contain $5.60 in nickel and dime. The number of nickel is 8 less than 3 time the dime. How many nickel and dime are their in the piggyback?

There are 6 magazine holders and each one holds the same number of magazines, at least 8. What are the four smallest possible numbers of magazines that are held in all 6 holders?

If 1/2 gallon of paint covers 1/12 of a wall then how much paint is needed for the entire wall

A man parked his car in a carpark at 08 30 and retrieved it at 15 45 on the same day. If the parking charges are $1.50 for the first hour and 80 cents for each subsequent half hour or part thereof, how much must he pay for parking his car there?

the owner of an appliance store brought 15 washers at $279 each and 18 dryers at $229 each. How much did the dealer spend in all?