Alex took out a 7/1 variable-rate mortgage for $140,000. The interest rate for the first period was fixed at 5.25%, and the loan was amortized over 30 years. At the end of the initial loan period, the interest rate was 6.75%, plus a 1.5% margin. What was Alex's monthly mortgage payment during the initial fixed-rate period?

Derek purchased a new gym membership. it costs him seven dollars a month plus two dollars for every time that he visits the gym. he wants to spend less than 25 dollars a month to visit the gym. write an inequality that models the situation using the variable v for the number of visits per month. also find the maximum number of visits he can make to the gym and still keep his cost below 25 dollars a month.