Ineed with this math problem.

the volume v of a pyramid with a square base with side length s and height h is v=1/3s^2h. solved for s, this formula gives s= startroot startfraction 3 upper v over h endfraction endroot . a pyramid has a volume of approximately 7,500,000 cubic meters. find the length of the side of the pyramid if its height is approximately 141 meters.
here's a picture of the problem since i'm not able to write the equation out like its shown.

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.