Well the cost of the apples can be found by dividing the price by the amount bought. ($5/4 or $10/8 = $1.25/lb). If you want to find the amount for 6 pounds just multiply it by the individual cost (6x$1.25= $7.50)
If AC=BD, than Quad ABCD is a rectangle AC √(3+3)²+(6-1)² √6²+5² √36+25 √61 BD √(1+1)²+(2-7)² √2²+(-5)² √4+25 √29 Quad ABCD is not a rectangle because √61 and √29 are not equal.
