Answer:
x=500
Step-by-step explanation:
7/10=350/x
cross-multiply by multiplying 350 to 10 and multiply 7 to x.
example:
7•x
350•10
7x=3500
divide both sides by 7
-------------
9-5*4+3
9-20+3
-11+3
= -8
2*2*2*2*9=144
√144
=12
