Pls give us model to this question:
joanne earns $720 a week. she spends 1/3 of her money on groceries and household goods and 3/4 of the remaining money on rent. how much money does she spends on rent, groceries and household goods.

The number of hours per week that the television is turned on is determined for each family in a sample. the mean of the data is 37 hours and the median is 33.2 hours. twenty-four of the families in the sample turned on the television for 22 hours or less for the week. the 13th percentile of the data is 22 hours. approximately how many families are in the sample? round your answer to the nearest integer.

Abox contains 1 plain pencil and 4 pens. a second box contains 5 color pencils and 5 crayons. one item from each box is chosen at random. what is the probability that a plain pencil from the first box and a color pencil from the second box are selected? write your answer as a fraction in simplest form.

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