Write a system of inequalities that describes the possible solutions to the problem.Matt is going to invest no more than $4000 into two accounts earning 2% and 4% simple interest. He would like the accounts to earn at least 
after one year. He wants to invest less than 
in the account earning 4% simple interest. Write a system of inequalities to describe this situation and solve by graphing.
A. x + y ? 4000
0.02x + 0.04y ? 80
x ? 0
y ? 1000
B. x - y ? 4000
0.02x + 0.04y ? 80
x ? 0
y ? 0
C. x + y ? 80
0.02x + 0.04y ? 4000
x > 0
y ? 0
D. 0.02x + 0.04y - 80 ? 4000
x ? 0
y ? 0
Answer: A
Mathematics
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Complete.7040 yd = 
mi
A. 1
B. 7
C. 4
D. 21,120
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Translate the sentence to an equation using the variable x. Then solve the equation.When 
of a number is added to 24, the result is 28.
A. 
+ x = 28; 28
B. 28 + 
x = 24; 16
C. 
x - 24 = 28; 208
D. 24 + 
x = 28; 16
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Factor completely. If the polynomial cannot be factored, write "prime."x4y5 - x3y7
A. x3y5(x - y2) B. x4y7(x - y2) C. x4y5(1 - xy2) D. x3y5(x - y)(x + y)
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