Gina Wilson, all things algebra unit 5 homework 2

The system of equations graphed below has how many solutions? y = 2x + 2

If f(x)=x+7 and g(x)=1/x what is (fog)(x)

Luke started a weight-loss program. the first week, he lost x pounds. the second week, he lost pounds less than times the pounds he lost the first week. the third week, he lost 1 pound more than of the pounds he lost the first week. liam started a weight-loss program when luke did. the first week, he lost 1 pound less than times the pounds luke lost the first week. the second week, he lost 4 pounds less than times the pounds luke lost the first week. the third week, he lost pound more than times the pounds luke lost the first week.