((pls a girl ))

1.) suppose you send about 12 text messages a day, and your older sister sends more text messages than you do. together, you send a total of about 26 messages per day. about how many text messages does she send a day? write an equation and solve for the unknown value

2.) your father uses text messaging to communicate with his employees. if he sends an average of 19 text messages each day, how many more text messages does he send than you? write an equation and solve for the unknown value.

3.) your parents allow you to have internet access on your cell phone as long as you prepay the bill. if your bill is $17.50 per week, how much would you have to save per day to pay the bill? describe the step-by-step process you use to solve the problem.

Ascientist studied a population of workers to determine whether verbal praise and/or tangible rewards affect employee productivity. in the study, some workers were offered verbal praise, some were offered tangible rewards (gift cards, presents, and some were offered neither. the productivity of each participant was measured throughout the study by recording the number of daily tasks completed by each employee. which inference might the scientists make based on the given information? a.) the number of daily tasks completed by each employee may influence the dependent variable, which is whether the employee receives verbal praise, tangible rewards, or neither. b.) verbal praise and/or tangible rewards may influence the independent variable, which is the number of daily tasks completed by each employee. c.) verbal praise and/or tangible rewards may influence the dependent variable, which is the number of daily tasks completed by each employee. d.) the dependent variables, which are verbal praise and tangible rewards, may influence the number of daily tasks completed by each employee.