Leila purchased a pre paid phone card for $25. long distance calls cost 22 cents a minute using this card. leila used her card only once to make a long distance call. if the remaining credit on her card is $19.50 , how many minutes did her call last?

One of the inventors of integrated circuits observed that the number of transistors that fit on an integrated circuit will double every 24 months. what type of relationship most appropriately models this situation?

Find an equation of the line perpendicular to the graph of 28x-7y=9 that passes through the point at (4,1)

Worth 100 points need the answers asap first row -x^2 2x^2 (x/2)^2 x^2 x is less than 2 x is greater than 2 x is less than or equal to 2 x is greater than or equal to 2 second row -5 -5/2 4 5 •2 is less than x& x is less than 4 •2 is less than or equal to x & x is less than or equal to 4 •2 is less than or equal to x& x is less than 4 •2 is less than x& x is less than or equal to 4