Ifx: a = y : b = z:c, show that x3
y3 z (x + y + z)
(a)
= 3
a3 b3 C3 (a+b+c)2
3
+

Jackie purchased 3 bottles of water and 2 cups of coffee for a family for $7.35. brian bought 4 bottles of water and 1 cup of coffee for his family for $7.15. how much does each bottle of water cost? how much does each cup of coffee cost? i need this done

Which recursive formula can be used to determine the total amount of money earned in any year based on the amount earned in the previous year? f(n+1)=f(n)+5

Is it greater than or less than7*3_9*2