Tammy has a rectangular rug that is 4 feet longer than it is wide. It is surrounded by a 2 foot border all the way around the rug. The border increases the area of the rug to 77 square feet. What equation could be used to determine the length and the width of the rug including the border?

1. which of the following algebraic equations is equivalent to ? x^n = a a^n = x a^x = n x^a = n 2. 16^1/4= 1/2 2 4 3. (-36)^1/2= -6 1/6 no real number 4. 8^2/3= 4 8 16√2 )^5/2= 7,776 1/7,776 no real number 6. m ^ the square root of a^2m simplified is: 7. the square root of 3^3 times the square root of 2 simplified and in radical form is: