That is the vertex form of a quadratic equation
Answer:
we have to use the formula of simple interest, which is
I = P r t
Where I is the interest earned, P is the amount invested, r is the rate of interest and t is the time duration .
In the given question, I = $4840 , r =11% or 0.11, t=11, P is unknown .
Substituting the values in the formula, we will get
4840=0.11*11*P4840=0.11∗11∗P
4840=1.21 P4840=1.21P
P=4000
So she invested $4000
3600 * 1 * 0.085 = 306
answer: interest would be $306
A₅=6*5-4
a₅=30-4
a₅=26
D. 26
Good Studies!!
There has to be a table of some sort, but if not I would say go with the largest can, because usually the bigger the item, the lower the unit rate is.
