Answer:
A black screen does not help me out.
Answer:
I think it would be (5,6)
Step-by-step explanation:
The formula is (y,-x).
Answer:
30 por ciento:2250
16 por ciento:1200
Step-by-step explanation:
Principal = 109,000
Return - 9,920
Return = (principal x rate x time)/100
X = the amount invested at 12%
Then 102000- x = the amount invested at 8%
9920 = (x*12)/100 + (109000-x*8)100
x = 30,000
a) 30,000 is invested at 12%
79,000 is invested at 8%
b) The 12% investment is riskier so if all the money was in that account the investor could lose all his money.
If Joe collected 94 stamps which are in April May and June, we could make an equation like this: A + M + J = All stamps
Plug in the values:

Isolate J:

Combine like terms:

He collected 33 stamps in June.