Simplify: 4(x+5)
A) 5x + 5
B) 20x + 20
C) 4x + 5
D) 20x + 9
E) 4x + 20
E) 4x + 20
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Find, if possible, AB and BA.A = 
, B = 
A. AB = 
, BA = 
B. AB = 
, BA = 
C. AB = 
, BA = 
D. AB = 
, BA = 
Find the mean for the grouped data. Round to the nearest tenth.
A. 8.9 B. 8.7 C. 13.5 D. 6.7
A deck of cards contains 52 cards. These cards consist of four suits - hearts, spades, clubs, and diamonds. Each suit contains one of each of the following: 2, 3, 4, 5, 6, 7, 8, 9, 10, jack, queen, king, and ace. Assume that one card is selected at random from a well-shuffled deck of cards.Find the probability that the card is a red card.
A. 
B. 
C. 
D. 
Multiply the polynomials. Express the answer as a single polynomial in standard form.(x - 13)2
A. x2 - 26x + 169 B. x + 169 C. x2 + 169 D. 169x2 - 26x + 169