There were 68 plates in the sink at the end of the day. there where 40 plates at the beginning of the day. how many plates were added throughout the day. use the arrow way to show your simplifying strategy

Plz i want answer and i would appreciate it is is a b c or d

The volume of gas a balloon can hold varies directly as the cube of its radius. imagine a balloon with a radius of 3 inches can hold 81 cubic inches of gas. how many cubic inches of gas must be released to reduce the radius down to 2 inches?

Write each of the following numerals in base 10. for base twelve, t and e represent the face values ten and eleven, respectively. 114 base 5 89t base 12