Classify “-1” as being a natural number, whole number, integer, rational, and/or irrational number.
a. Natural number and whole number
b. Whole number and integer
c. Integer and rational number
d. Whole number and irrational number
c. Integer and rational number
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Solve the proportion equation.
= 
A. 15
B. 126
C. 21
D. 
Provide an appropriate response. Use the sine function to find length b of right triangle ABC given c = 17.4 ft and B = 23°. Round to four significant digits.
A. 16.02 ft B. 6.799 ft C. 18.90 ft D. 44.53 ft
Solve the formula for the indicated letter. Assume that all variables represent nonnegative numbers.A = 
?r2 for r
A. r = ±3
B. r = ±
C. r = ±
D. r = ± 
Write an English phrase that would translate into the given mathematical expression.6(x - 2)
A. Six more than the difference of a number x and 2 B. The difference of a number x and 2 C. Six times a number x decreased by 2 D. Six times the difference of a number x and 2