It's the Geometric Sequence.
The n<span>-th term of a geometric sequence with initial value </span>a<span> and common ratio </span>r<span> is given by:
</span>

We have:

Substitute:

Answer:
The sixth term is equal -486.
Step-by-step explanation:


and then minus them
The system of equations that represent the cost of x shirts, and y pairs of pants are 4x + 3y = 85.50 and 3x + 5y = 115.00. Option (a) is correct.
A system of equations or an equation system is a collection of simultaneous equations.
Given that Shopping at Saver Mart, Lisa buys her children four shirts and three pairs of pants for $85.50 and She returns the next day and buys three shirts and five pairs of pants for $115.00
Now we have to find the system of equation
Lisa buys her children four shirts and three pairs of pants for $85.50 is given by
4x + 3y = 85.50
She buys three shirts and five pairs of pants for $115.00 is given by
3x + 5y = 115.00
Therefore the system of equations that represent the cost of x shirts, and y pairs of pants are
4x + 3y = 85.50 and 3x + 5y = 115.00
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Total surface aera
1 big recangle and 2 triangles
rectangle has base of 3+4+5= 12
12*7=84
the 2 triangles
has base is 4
height of 3
2 of them
2*1/2*3*4=12
add total
84+12=96 in^2