8 to the power of 2 ÷4×(2+3)-9

In which form is the following function written? y = - 2(x – 3)(x + 5)

The weight v of an object on venus varies directly with its weight e on earth. a person weighing 120 lb on earth would weigh 106 lb on venus. how much would a person weighing 150 lb on earth weigh on venus?

The sum of the squares of two numbers is 8 . the product of the two numbers is 4. find the numbers.