His collection contains two types of cards. a pack of trading card a cost $4, and a pack of trading card b cost $7. how many packs of each type of trading card were purchased if the total number of packs is 11.

What is the best approximation for the area of a circle with a radius of 4 m ? use 3.14 to approximate pi

Typically a point in a three dimensional cartesian coordinate system is represented by which of the following answers in the picture !

Hassan bought a package of tofu. the temperature of the tofu was 14° celsius when hassan put the package into the freezer. he left the tofu in the freezer until it reached –19° celsius. which expressions explain how to find the change in temperature, in degrees celsius, of the package of tofu? select three that apply.