Answer:
-3, if we assume that we only want positive square roots.
Step-by-step explanation:
Take the (positive) square root of both 64 and 121 to get 8 and 11. 8-11= - 3.
Hope this helps :)
71.5%
To solve, the easiest method I've found is to set up 2 fractions and cross multiply. so, x/100 = 105.1/147
The answer is -6x because you have to substract -8x from 2x
X=7.1cm
The solution is in the attached file