Which is the graph of f(x) = (2) * ? fy
8
1y
8
hy
8
6

6
6
4
4
4
2
2
x
1
2
-2
O
O
O

A

Step-by-step explanation:

B and C are a graph of an exponential function with base<1, 2^x has a base of 2>1 and hence is an increasing function

tangent

step-by-step explanation:

rick has $1400 and sally has $1500

step-by-step explanation:

to find amount of money rick has after 10 years :

principal = $1000 , time = 10 years , rate = 4% annually

to find amount of money sally has after 10 years :

her friend gives to pay her $50 per year, therefore money she has after 10 years = 50 × 10 = $500

also, sally gets $1000 after 10 years,

therefore, total amount of money sally has after 10 years = 500 + 1000 = $1500

so, after 10 years : rick has $1400 and sally has $1500