A commuter has $245 in his commuter savings account. This account charges $15 each week he buys a ticket. In one time period, the account changed by $240. a. For how many weeks did the commuter buy tickets? b. How much must he add to his account if he wants to buy 20 weeks of tickets?

Acomputer store buys a computer system at a cost of $370.80. the selling price was first at $ 618, but then the store advertised a 20 % markdown on the system. answer parts a and b. a. find the current sale price.

(x-5)1/2+5=2 what is possible solution of this equation

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.