5 3/4 divided by 1 and 1/2

Which of the following would represent the sum of 3 consecutive integers if x is the first integer?

Find an equation for the linear function which has slope -10 and x-intercept -7

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.