Unknown factor and quotient

Which of the following values are not in the range of the function f (x) = x^2?

Y=1/2x-4 is it increasing or decreasing

Carina spent a total of $5.27 buying a pineapple for $3.40 and some tomatoes that were on sale for $0.85 per pound. To determine the number of pounds of tomatoes that she bought, x, Carina wrote and solved the equation as shown below. 3.40 + 0.

George spends 39 weeks a year at work. what fraction of the year is it?

You want to know the favorite band of the 25 students in your math class. Should you survey the whole class, which is the entire population or a sample of students from the class. Explain.

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?