Solve the problem by using two equations with two variables.Julie and Eric row their boat (at a constant speed) 40 miles downstream for 4 hours, helped by the current. Rowing at the same rate, the trip back against the current takes 10 hours. Find the rate of the current.
A. 2.5 mph
B. 7 mph
C. 3 mph
D. 4 mph
Answer: C
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Divide.-9.648 ÷ 12
A. -1.804 B. -0.804 C. -18.04 D. -8.04
Find two different spanning trees for the graph.
What will be an ideal response?
Describe the transformations that produce the graph of g from the graph of f.f(x) = x2 ; g(x) = -(x - 9)2 + 2
A. Shift it 9 units to the left. Reflect it across the 
Shift it 2 units up.
B. Shift it 9 units to the right. Reflect it across the 
Shift it 2 units up.
C. Shift it 9 units to the right. Reflect it across the 
Shift it 2 units down.
D. Shift it 9 units to the right. Reflect it across the 
Shift it 2 units up.
Find the interest earned. Assume 3
% interest compounded daily, as in the following table, and use the exact number of days. Round to the nearest cent. 
Amount: $2,200Deposited: Jan 27Withdrawn: Apr 5
A. $2,214.39 B. $21.30 C. $21.94 D. $14.39