Mr. Cooper invested a sum of money at 6%. He invested a second sum, $150 more than the first, at 3%. If his total annual income was $54, how much did he invest at 3%

howard, fine, & howard is an advertising agency. the firm uses an activity-based costing system to allocate overhead costs to its services. information about the firm's activity cost pool rates follows: stooge company was a client of howard, fine, & howard. recently, 7 administrative assistant hours, 3 new ad campaigns, and 8 meeting hours were incurred for the stooge company account. using the activity-based costing system, how much overhead cost would be allocated to the stooge company account?