If an expression was (x * y)^n , so (x times y) to the power of n, would you multiply x and y first or distribute the exponent, making (x^n * y^n)?

Kelly is a salesperson at a shoe store, where she must sell a pre-set number of pairs of shoes each month. at the end of each work day the number of pairs of shoes that she has left to sell that month is given by the equation s=300-15x , where s is the number of pair of shoes kelly still needs to sell and x is the number of days she has worked that month. what is the meaning of the number 300 in this equation

Xto the second power plus 14x plus 48. what are the factors? we are doing factoring trinomials with a=1

Me, prove a quadrilateral with vertices g(1,-1), h(5,1), i(4,3) and j(0,1) is a rectangle using the parallelogram method and a rectangle method.