Michelle spent $32 on hot dogs and hamburgers hot dogs were $5 and hamburgers $6. if she bought a total of 6 item how many of each kind

a) 2 hot dogs and 4 hamburgers
b) 4 hot dogs and 2 hamburgers
c) 3 hot dogs and 3 hanburgers
d) 6 hot dogs and 0 hamburgers

The coverage of a base station of a telecommunication company forms a disk with a radius of (kilometers). let be the distance of a cellphone from a base station. assume that the location of cellphones in use are randomly uniformly distributed within the disk. calculate the mean and variance for the random variable.