The cost of 6 oranges is $1. what is the cost of 3 dozen oranges?

The square root of 9x plus 7 plus the square rot of 2x equall to 7

If private savings 'v' = 0.75s and total savings 's' equals $4.20 billion, solve for public and private savings.

Add, subtract, multiply, or divide as indicated. list any restrictions for the variable(s) and simplify the answers when possible. 1) x-2 / x+5 + 3x / 2x-1 2) x+6 / x-6 - x^2 / x+6 3) x+9 / x-4 + x+2 / x^2-11x+28 4) x / x^2-64 + 11 / 2x^2+11x-40 5) 5 / x + 11 / x-3 - x-4 / x^2+2x-15