Multiply using FOIL. Assume all variables have nonnegative values.(7 + 
)(2 - 
)
A. 14 + 5
- c
B. 14 - 5
+ c
C. 14 - 5
- c
D. 14 + 5
+ c
Answer: C
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Find all specified roots.Seventh roots of 1.
A. 1, cis 
, cis 
, cis 
, cis 
, cis 
, cis 
B. -1, cis 
, cis 
, cis 
, cis 
, cis 
, cis 
C. 1, cis 
, cis 
, cis 
, cis 
, cis 
, cis 
D. 1, cis 
, cis 
, cis 
, cis 
, cis 
, cis 
, -1
Evaluate the expression for the given values. If necessary, round to the nearest tenth.
+ y2 x = 3, y = 7
A. 
B. 
C. 
D. 
Solve by the substitution method.0.5x - 0.1y = -0.70.1x - 0.1y = -0.3
A. ? B. {(-1, 2)} C. {(2.3, 6.5)} D. {(-1.6, 4.3)}
Solve the problem.A local animal shelter accepts abandoned cats and dogs. They usually receive three times as many cats as dogs. They estimate that 80% of the cats and 50% of the dogs that come in need some kind of medical treatment. If they treated 261 animals last year, how many cats and dogs did they take in?
A. 270 dogs, 90 cats B. 270 dogs, 810 cats C. 90 dogs, 93 cats D. 90 dogs, 270 cats