Heres a tip---- if it has a square its 90 degrees if it doesnt its 180 and if its in an x shape theyre equal
Answer:
E
Step-by-step explanation:
is the same as 
· 
This can be simplified to 9 ·
And the square root of -1 is i,
so this equals 9i
The system of equations are:
a + l = 250 million equation 1.
a = 40 million + 2l equation 2
Where:
- a = profit made in Accra
- l = profit made in Lagos
The ratio of net return is 18 : 7
<h3>What is the profit made in the Lagos market?</h3>
Substitute for a in equation 1 using equation 2
40 + 2l + l = 250
40 + 3l = 250
3l = 250 - 40
3l = 210
l = 210 / 3
l = 70 million
<h3>What is the profit made in the Accra market?</h3>
Subtract 70 million from 250 million: 250 - 70 = $180 million
The ratio of returns : 180 million : 70 million
18 : 7
To learn more about simultaneous equations, please check: brainly.com/question/25875552
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