Three question pls show work for all three will give brainless
1. A spherical fish tank has a radius of inches. Assuming the entire tank could be filled with water, what would the volume of the tank be? Round your answer to the tenths place. *

A.100.5 in^3
B. 33.5 in^3
C. 267.9 in^3
D. 2,143.6 in^3

2. Kevin makes a candle in the shape of a sphere. He uses two bowls as molds, filling them with wax, letting them dry, and then gluing the hemispheres (half spheres) together to make one sphere. Each bowl has a diameter of 16 centimeter. How much wax is needed to make one spherical candle? *

3. A sphere has a radius of 4 inches, and a cube-shaped box has an edge length of 7.5 inches. J. D. says the box has a greater volume, so the sphere will fit in the box. Is he correct? Explain. (Recall the volume of a cube = edge*edge*edge) *

In a study of the relationship between socio-economic class and unethical behavior, 129 university of california undergraduates at berkeley were asked to identify themselves as having low or high social-class by comparing themselves to others with the most (least) money, most (least) education, and most (least) respected jobs. they were also presented with a jar of individually wrapped candies and informed that the candies were for children in a nearby laboratory, but that they could take some if they wanted. after completing some unrelated tasks, participants reported the number of candies they had taken. it was found that those who were identiď¬ed as upper-class took more candy than others. in this study, identify: (a) the cases, (b) the variables and their types, (c) the main research question, (d) identify the population of interest and the sample in this study, and (e) comment on whether or not the results of the study can be generalized to the population, and if the ď¬ndings of the study can be used to establish causal relationships.