Antonia needs to have worked at least 90 volunteer hours to graduate. she has already volunteered with a housing organization over the summer for 52 hours. Antonia needs to tutor after 3 hours per week to complete the remaining hours. If w is the number of weeks Antonia needs to tutor to complete her volunteer hours, which of the following inequalities best models the situation described above?

Layer r contains a well-known index fossil that is 100 million years old. based on this information and the principle of superposition, a. layers t and m are older than 100 million years, and layers x and g are younger than 100 million years. b. layers t, m, x, and g are all older than 100 million years. c. layers t and m are younger than 100 million years, and layers x and g are older than 100 million years.