Be more specific for yssss !!
How old is her father now? That question has no answer.
Answer:
Step-by-step explanation:
we know that
The compound interest formula is equal to
where
A is the Final Investment Value
P is the Principal amount of money to be invested
r is the rate of interest in decimal
t is Number of Time Periods
n is the number of times interest is compounded per year
in this problem we have
substitute in the formula above
Cross multiply
(x-6)(x+3)=x²-6x+3x+18=x²-3x+18
(x+7)(x+5)=x²+7x+5x+35=x²+12x+35
that means the inequality is
x²-3x+18≥x²+12x+35 which simplifies to
<em>—17≥15x or 15x+17≤0</em>
The answer for 3-(-2) is 5