First estimate the answer. Then add or subtract to find the exact answer. Write answer as a mixed number.
A. Estimate: 10; Exact: 
B. Estimate: 11; Exact: 
C. Estimate: 11; Exact: 
D. Estimate: 10; Exact: 
Answer: C
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Write the fraction as a percent. If necessary, round the percentage to the nearest tenth.
A. 2% B. 200% C. 0.2% D. 20%
Find the equation of the line that has the given properties. Write the equation in slope-intercept form, if possible. Contains (5, -2); perpendicular to the line y = 
x + 4
A. y = - 4x - 18
B. y = - 4x + 18
C. y = - 
x - 
D. y = 4x - 18
Factor out the GCF.n5 - 29nw6 + 11n3w8 - 23n5w6
A. n(n4 - 29w6 + 11n2w8 - 23n4w6) B. nw6(n4 - 29 + 11n2w2 - 23n4) C. n2(n4 - 29w5 + 11n2w7 - 23n4w5) D. nw(n4 - 29w5 + 11n2w7 - 23n4w5)
Find the exact value of the indicated trigonometric function of ?.sin ? = - 
, tan ? > 0Find sec ?.
A. 
B. - 
C. - 
D. - 