Answer:
140
Step-by-step explanation:
Suppose,
x drinks were sold for 2$
y drinks were sold for 5$
therefore, x+y = 250....( 1 )
and 2x+5y = 830......( 2 )
multiply equation ( 1 ) with 2,
2x+2y = 500......( 3 )
Subtract equation ( 3) from (2)
3y = 330
or, y = 110
so, x = 140
so, 140 drinks were sold for 2$
The two options you picked are indeed correct.
In the chloroplast of the leaf
2 + sqrt(-81) +(-7 - 15i)
= 2 - 7 +9i - 15i
= -5 - 6i
