9 Olivier has 548 25 to spend on painting classes. Each class costs $6 plus a one-time registration fee of $6.25. Let the variablen represent the number of classes which equation represents the number of
classes Olivier can attend for $48.257
A 12.25n48.25
B. 6 + 6.25n48.25
C6n + 12.25 -48.25
D. On +6.25 - 48.25
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5. which description does not guarantee that a quadrilateral is a squar ajo is a parallelogram with perpendicular diagonals 0% has all sides congruent and all angles congruent o has all right angles and has all sides congruent 10% is both a rectangle and a rhombus 30%

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.

#7. m is the midpoint of pq, the diameter of the circle o is 13in. and rm = 4in. find pm find pq