Which of the following would not qualify as valid consideration? Laura buys $100 worth of clothes from Martha on credit.
Bill rents an apartment from his landlord.
Marcy pays Jim a dollar for every bag of tin cans he picks up for recycling.
Spencer and Linda sign a contract where Linda buys all her lumber from Spencer and Spencer sells as much lumber to Linda each week as he wants

Kirnon clinic uses client-visits as its measure of activity. during july, the clinic budgeted for 3,250 client-visits, but its actual level of activity was 3,160 client-visits. the clinic has provided the following data concerning the formulas to be used in its budgeting: fixed element per month variable element per client-visitrevenue - $ 39.10personnel expenses $ 35,100 $ 10.30medical supplies 1,100 7.10occupancy expenses 8,100 1.10administrative expenses 5,100 0.20total expenses $ 49,400 $ 18.70the activity variance for net operating income in july would be closest to:

Abond purchased for $950 was sold for $980 after one year. the interest received during the year is $25. the bond's yield is:

Which is the most compelling reason why mobile advertising is related to big data?