SOME ONE HELP PLEASE ILL MARK BRAINIEiST. AND I NEED TO KNOW THE PRICE OF ORANGES. WORTH A 100 POINTS> AND PLEASE DONT WASTE MY POINTS PLEASE Steve buys 2 lb of grapefruit and 3 lb of oranges for $7.20. Kennedy buys 4 lb of
grapefruit and 2 lb of oranges for $8.80. Let x represent the price per pound for
grapefruit, and let y represent the price per pound for oranges. Write a system of
equations to model the situation. What is the price per pound for oranges?

Suppose we have a set of small wooden blocks showing the 26 letters of the english alphabet, one letter per block. (think of scrabble tiles.) our set includes 10 copies of each letter. we place them into a bag and draw out one block at a time. (a) if we line up the letters on a rack as we draw them, how different ways coukl we fill a rack of 5 letters? (b) now suppose we just toss our chosen blocks into a pile, and whenever we draw a letter we already have, we put it back in the bag and draw again. how many different piles of 5 blocks could result? possible? piles will contain at least one repeated letter? (c) if we draw out 5 blocks wit hout looking at them, how many different piles are (d) if we draw out 5 blocks without looking at them, how many of the possible 2. (4) consider the following formula. 12 give two different proofs, one using the factorial formulas and the other combina torial.