Simplify.13 + (-15) - 19
A. -21
B. 47
C. 21
D. 17
Answer: A
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Find the probability.If three cards are drawn without replacement from a deck, find the probability that the third card is a heart, given that the first two cards were hearts.
A. 
B. 
C. 
D. 
Use the vertical line test to determine whether or not the graph is a graph in which y is a function of x.
A. not a function B. function
Provide an appropriate response.Given the following quadrilateral, express the perimeter, or total distance around the figure, as an algebraic expression in terms of x. Use this algebraic expression to find the perimeter if x = 2.
A. (7x + 8) inches; 22 inches B. (7x + 10) inches; 24 inches C. (5x + 8) inches; 18 inches D. (6x + 8) inches; 20 inches
Use cross products to determine whether the proportion is true or false.
= 
A. True B. False