Answer:
i dont know what it means by expand but i will simplify it 
it would simplify to 16x-18
Step-by-step explanation:
5(2x-1) + 2(3x-6)
10x-5+6x-12
10x+6x-5-12
16x-18
 
        
             
        
        
        
Answer:
The value of the bond when Tyler's mom purchased it was $150
Step-by-step explanation:
we know that
In this problem we have a exponential function of the form

where
a is the initial value (y-intercept)
b is the base
r is the rate
b=(1+r)
In this problem
r=4%=4/100=0.04
b=1+0.04=1.04
substitute

where
x is the number of years since the savings bond was purchased
f(x) is the value of the savings bond
For x=1
f(x)=$156
substitute

Solve for a


therefore
The value of the bond when Tyler's mom purchased it was $150
 
        
             
        
        
        
Answer:
Let the unknown number be x and the other greater number be x+7
(x+7)+x=17
2x=17-7
x=5
x+7=5+7
      =12
 
        
             
        
        
        
A pentagon, 5 sides, all internal angles add up to 720°, so wen u do the maths, X=5
        
             
        
        
        
Given:
The recursive formula of a geometric sequence is


To find:
The explicit formula of the given geometric sequence.
Solution:
We know that, first term of geometric sequence is  .
.
Recursive formula of a geometric sequence is 
 ...(i)
      ...(i)
where, r is common ratio.
We have,
 ...(ii)
    ...(ii)
On comparing (i) and (ii), we get

The explicit formula of a geometric sequence is

Putting  and
 and  , we get
, we get

Therefore, the correct option is D.