Answer:
y = 90
Step-by-step explanation:
You can use proportions to answer this question.

Cross multiply 30 to -9; -3 to y

Isolate <em>y</em> by dividing -3 on both sides

Answer:
25110.51
Step-by-step explanation:
A = P(1 + r/n)^(nt)
A = final amount
P = initial principal balance
r = interest rate
n = number of times interest applied per time period
t = number of time periods elapsed
A = 16100(1+.1/4)^(4*4.5) = 25110.51
She received $25 in commissions
a family of functions is a set of functions whose equations have a similar form. the "parent" of the family is the equation in the family with the <u>simplest</u> form.