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?

If f(x)=3x+1 and f^-1=x-1/3, then f^-1(7)=

Colby and jaquan are growing bacteria in an experiment in a laboratory. colby starts with 50 bacteria in his culture and the number of bacteria doubles every 2 hours. jaquan starts with 80 of a different type of bacteria that doubles every 3 hours. let x equal number of days. colbys experiment follows the model: a.) y=50*2^x b.) y=50*2^8x c.) y=50*2^12x jaquans experiment follows the model: a.)80*2^x b.)80*2^8x c.)80*2^12x

Which ordered pair is a solution to the system of linear equations? 2x + 3y= 6 –3x + 5y = 10