Answer:
c
Step-by-step explanation:
because it has no fraction and pie is a symbol not a number
Let the amount he invested in the 5% rate be x and the one in the 7.5% rate be y, then
x + y = 10000 . . . (1)
0.05x = 0.075y . . . (2)
From (2), x = 0.075y/0.05 = 1.5y . . . (3)
Putting (3) into (1) gives
1.5y + y = 10000
2.5y = 10000
y = 10000/2.5 = 4000
x = 1.5(4000) = 6000
Therefore, he invested $6,000 in the secure GIC at 5% and $4,000 in the mutual fund.

In the given figure, NQ acts as a diameter and since diameter subtends 90° at the arc of the circle, so we can conclude that ~



Now, Let's use Angle sum property of Triangle to solve for z :







I hope you understood the procedure, you can ask me in comments if you have any doubts.