You want to install a fence post. You dig a cylindrical hole with a diameter of 1 foot and a depth of 1.5 feet for the concrete. A 40-pound bag of concrete mix yields 0.3 cubic feet. How many bags do you need to install the fence post? I got 4 bags to fill the hole, can someone confirm?​

When drawing a trend line for a series of data on a scatter plot, which of the following is true? a. there should be an equal number of data points on either side of the trend line. b. all the data points should lie on one side of the trend line. c. the trend line should not intersect any data point on the plot. d. the trend line must connect each data point on the plot.

Use the graph of the sine function y=2sinθ shown below

The length of a rectangle plus its width is 25 cm. the area is 156 square cm. what are the length and width of the rectangle? separate the answers with a comma.