First, round the mixed numbers to the nearest whole number and estimate the answer. Then find the exact answer and write it in simplest form.7
? 4
A. 39
B. 35
C. 28
D. 36
Answer: B
Mathematics
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Fill in the blank with one of the words or phrases listed below. 
Use the facts below. 2 ? 3 = 6
4 + 17 = 21
20 - 9 = 11
The 3 above is called a(n) 
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A. dividend
B. divisor
C. addend
D. factor
Mathematics
Solve the problem.A spring on a horizontal surface can be stretched and held 0.5 m from its equilibrium position with a force of 45 N. How much work is done in stretching the spring 2 m from its equilibrium position?
A. 360 J B. 45 J C. 180 J D. 90 J
Mathematics
Graph the equation.-2.6x + 1.6y = 7
A. 
B. 
C. 
D. 
Mathematics
Verify the identity.cos 4? = 2 cos2(2?) - 1
What will be an ideal response?
Mathematics