A communication link provides $100Mbps$ for communications between the earth and the

moon. The link sends color images from the moon. Each image consists of ${10}^7$ pixels,

and $128$ bits are used for each of the three$-$color components of each pixel.

a$)$ How long it takes to transmit an image over the link?

b$)$ If each image is transmitted as a single frame, how long does it take to get an

acknowledgement back from earth? The distance between earth and moon is

approximately $3\mathrm{.}75{10}^{8}m,$ and propagation speed is $3{10}^8\frac{m}{s}$