A parking lot has dimensions $1.5\mathrm{km}\times 75 \mathrm{m}$ If one car requires $7.5 {\mathrm{m}}^2$ of area, find how many cars can be parked in that lot.

Shruthi has cut a rectangular sheet of paper of dimensions $32 \mathrm{cm}\times 26 \mathrm{cm}$ shown in the figure. If the area of the design is $k {\mathrm{cm}}^2$, then find the value of $k$.

A rectangle made of wire has a perimeter of $60 \mathrm{cm}$. What is the length of each side if the wire is rebent to form a regular pentagon?