Translation algebraic expressions1.) 7 is added to k 2.) 4 less than z 3.) 9 minus x 4.) product of 4 and c 5.) take away 9 from z6.) sum of 9 and s7.) x minus 48.) 9 is subtracted from x9.) f is added to 8 10.) d divided by 4 need a big

Which expression is not a polynomial?

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.

Iknow the answer but the calculator doesn't seem to give the right one