In thirty months you should have 5,250.00
40(105/100)=42
.........................
Answer:
12.3
Step-by-step explanation:
Answer:

Step-by-step explanation:

Switch sides:

Multiply both sides by 9:


Divide both sides by 5:


Add 32 to both sides:


The answer is: (z - 6)(z + 15)
z² + 9z - 90 = z*z + 15z - 6z - 6*15 =
= (z*z + 15z) - (6z + 6*15) =
= z(z + 15) - 6(z + 15) =
= (z - 6)(z + 15)