If 162 is diminished by the sum of 75 and 6 than divided by three what is the answer

i don’t need the answer just an explanation on how to do it

What is the value of x in the following equation. -x ^3/2 = -27

Cody was 165cm tall on the first day of school this year, which was 10% taller than he was on the first day of school last year.

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.