PLEASE HELP FAST. A submarine was descending at a rate of 300 feet per minute. If 0 represents sea level and distances below sea level are negative, which expression represents the location of the submarine after 4.5 minutes?
A. -304.5 ft.
B. -1350 ft.
C. 304.5 ft.
D. 1650 ft.

Find the length of the following tangent segments to the circles centered at o and o' whose radii are 5 and 3 respectively and the distance between o and o' is 12. what is the tangent segment of cd?

Graph the line that represents a proportional relationship between d and t with the property that an increase of 33 units in t corresponds to an increase of 44 units in d. what is the unit rate of change of dd with respect to t? (that is, a change of 11 unit in t will correspond to a change of how many units in d? )

In an improper fraction, is the numerator equal to, less than, or greater than the denominator