Arrange the digits 2, 3, 4, 5, 6 and 7 in a 2×3 array (2 rows, 3 columns) so that the product of the two 3-digit numbers in each row is equal to the product of the three 2-digit numbers in each column. what is the sum of the 3-digit numbers in the rows?

i solved this problem (999) but i need mathematically proving it is the only solution possible.

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

Acircular garden with radius of 8 feet is surrounded by a circular path with a width of 3 feet. what is the approximate area of the path alone? use 3.14 for π

Which graph represents the parent function of y=(x+2)(x-2)