We have the formula: (spending : sum of spending) . 100 = ......
Answer:

Step-by-step explanation:

x=tan^-1(
)
It has to be in Quadrant 1
or 3
for positive.

Unless that incorrect due to tan(x) range is
. Then the only answer is 
Answer:
x=924
Step-by-step explanation:
348 + 926 = x + 350
we have two 2-terms additions in both sides of the equation.
348 and 350 are two <em>similar</em> numbers then x and 926 should be really <em>close</em> numbers.
(due to commutative property of additions 348 + 926 = 350 + x)
<em>since 348 has two units less than 350, then 926 must have two units more than x, and <u>x=924</u></em>
(indirect proportionality)