# How how did a climber climb if he only climbed halfway up Mount Everest wherthe highest elevation on earth is Mount Everest in Asia and it is approximately 2.9 x 10^4 feet high?

that is you want to know how to divide $2.9 \times {10}^{4}$ by 2 (or equivalently multiply it by $\frac{1}{2}$)
The "scaling factor (${10}^{4}$) is not effected by this division, so the answer is
$\frac{2.9}{2} \times {10}^{4}$
$= 1.45 \times {10}^{4}$