If the circumference of a spherical object is 31.40 cm, what is the surface area of the object? use 3.14 for pi.

What is the effect on the graph of the function f(x)=x when f(x) is replaced with -f(x)+4

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? )

Patty made a name tag in the shape of a parallelogram. reilly made a rectangular name tag with the same base and height. explain how the areas of the name tags compare.