Evaluate the algebraic expression for the given value or values of the variable(s).
;
x = -1 and y = 3
A. 
B. - 
C. 
D. - 
Answer: D
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Estimate the sum, difference, product, or quotient involved in the problem.An advertisement states that television sets are on sale at B&G Electronics. The prices are: src="https://sciemce.com/media/4/ppg__rrr0708191005__f1q142g5.jpg" alt="" style="vertical-align: -4.0px;" /> set cost than a 
set, $147.99; 19-inch set, $208.95; 
set, $231.99; 
set, $289.97; 
set, $519.97. About how much more does a 
set? Estimate to the nearest ten.
A. $130
B. $150
C. $120
D. $140
Solve the problem.The sum of two angles is 231°. One angle is 27° less than twice the other. Find the angles.
A. 84° and 147° B. 141° and 90° C. 84° and 141° D. 86° and 145°
Find the domain of the composite function (g ? f)(x). Write the domain in interval notation.f(x) = 
, g(x) = 7x4
A. (-?, 0) ? (0, ?) B. (-?, ?) C. (-?, 0] D. (-?, 4) ? (4, ?)
Solve the equation. Use words or set notation to identify equations that have no solution, or equations that are true for all real numbers. 7x + 9(x + 1) = 16(x + 1) - 7
A. ? B. {x|x is a real number} C. {0} D. {1}