Answer:
0.10x + 0.13y = 10780
x + y = 100000
x = 74000 --------------10%
y = 26000 --------------13% (more risky)
-3
Step-by-step explanation:
i think it might be-3 because a negative and a negative equals a positive
2x(-7)^2-9 = 2x49-9=98-9=89 maybe
