Explicit formula for the sequence 29,20,11....... is 
Given :
term of the sequence 29, 20, 11, ...
We need to find out the formula for the nth term of the given sequence
Lets find out whether the given sequence is arithmetic or geometric
In the given sequence , common difference is 9

we can say difference =-9
General explicit formula

where a1 is the first term
common difference d=-9
substitute the values

Explicit formula for the sequence 29,20,11....... is 
Learn more : brainly.com/question/23243640
Answer: a
Step-by-step explanation:
15.00x13.00=195
3x15.00=45.00
15x10.00=150.00
150.00+45.00=195.00
x+y=12
x-y=4
Then you solve:
x+y=12
-y -y
x=12-y
x-y=4
+y +y
x=4+y
4+y=12-y
+y +y
4+2y=12
-4 -4
2y=8
divide both sides by 2 to isolate y
y=4
Plug it into one of the equations
x+4=12
-4 -4
x=8
We have the following:
The formula to calculate the cost is as follows:

In this case, p is equal a 1700, replacing:

Therefore, the cost of 1700 magnets is $1200