n a standard Normal distribution, what percentage of observations lie between z = –1.08 and z = 0.92?

Someone me! if you’re smart you can solve this!

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.

George writes the mixed number as sum and uses the distributive property 1/2.-2/5=1/2-2+2/5=1/2