Solve using the elimination method. Use a graphing calculator to check your answer.0.4x + 0.9y = 3 x - 0.6y = 1.8
A. (2, 3)
B. (3, 2)
C. (0.3, 0.2)
D. No solution
Answer: B
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Provide an appropriate response.Solve the following using a system of equations: A board that measures 24 inches is cut into two pieces. The longer piece is twice as long as the shorter piece. What is the length of each piece?
Fill in the blank(s) with the appropriate word(s).
Simplify the expression. Assume that variables represent nonzero numbers.(ab3)4(ab)5
A. a20b60 B. a9b8 C. a9b12 D. a9b17
Solve.A woman borrowed $20,000 at 8% interest compounded annually. If the loan was paid off in one lump sum at the end of 5 years, how much did she pay?
A. $28,000.00 B. $29,386.56 C. $21,600.00 D. $9386.56
?Find the open intervals on which the function 
is increasing or decreasing.
?
A. ?The function is increasing on the interval 
and decreasing on the interval 
.
B. ?The function is increasing on the interval 
and decreasing on the interval 
.
C. ?The function is increasing on the interval 
and decreasing on the interval 
.
D. ?The function is increasing on the interval and decreasing on the interval .
E. ?The function is increasing on the interval 
and decreasing on the interval 
.