Several triangles are shown below with congruent sides, congruent angles and right angles shown.
(a) Which ones are scalene triangles?
(b) Which ones are isosceles triangles?
(c) Which ones are right triangles?
(d) Which ones are equilateral triangles?
(e) Which ones are obtuse triangles?
(a) ?DEF, ?QRT
(b) ?ABC, ?JKL, ?MNP, ?GHI
(c) ?DEF, ?MNP
(d) ?GIH
(e) ?JKL, ?QRT
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A. 
B. - 
C. 
D. - 
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A. an = 4n-1 B. an = 4n - 2 C. an = 2n - 4 D. an = n + 4
Solve the problem.A cellular phone company determines a monthly bill from the x number of minutes of usage. The amount of the bill, B(x), (in dollars) is given by the function: 
Determine the bill of a customer who uses her cellular phone 32.00 minutes during the month.
A. $32.00 B. $961.92 C. $3.52 D. $33.47
Multiply and simplify.
? 
A. 
B. 
C. 
D. 
y