Karen purchased a prepaid card for 30$. Long distance calls cost 17 cents a minute using this card. Karen used her card only once to make a long distance call. If the remaining credit on her card is $27.28, how many minutes did her call last

If f (x) = 4x squared + 1 and g (x) = x squared - 5, find (f+g) (x)

Y=300-5x in standard form

How do you factor x^3+x^2+x+1 by grouping

What is x y-7=0 in standard form

The cost for 7 dance lessons is $82, the cost for 11 lessons is $122. write a linear equation to find the total cost (c) for (l) lessons. then use the equation to find the cost of 4 lessons.

A newspaper reporter wants to know how popular the hobby of bird watching is in the city. He asked people at the local bird refuge if they watched birds as a hobby. Which of the following best explains whether the reporters data is valid or not?

I am very confused on how to figure out if y = 3/4x is proportional?

Alison wants to buy a mountain bike for $339.12. If she saves $28.26 each month, in how many months will she be able to buy the bike?

At 12 o'clock the temperature was 7°C. The temperature decreased by - 20°C. What is the new temperature?

Ashleys rentals charges $27.50 per hour to rent a surfboard and a wetsuit. Darlas surf shop charges $23.25 per hour to rent a surfboard plus $17 extra for a wetsuit.