Which of the following are signatures for constructors in the Rectangle class? Choose all options that apply.

A. Rectangle(double len1, double len2, double len3, double len4)

B. Rectangle(double len)

C. Rectangle(int len)

D. Rectangle(int len, int wid)

E. Rectangle()

F. Rectangle(double len, double wid)

For a typical middle-income family, what is the estimated cost of raising a child to the age of 18? $145,500 $245,340 $304,340 $455,500

State 7 common key's for every keyboard

Acomputer has a two-level cache. suppose that 60% of the memory references hit on the first level cache, 35% hit on the second level, and 5% miss. the access times are 5 nsec, 15 nsec, and 60 nsec, respectively, where the times for the level 2 cache and memory start counting at the moment it is known that they are needed (e.g., a level 2 cache access does not even start until the level 1 cache miss occurs). what is the average access time?