Find the function value.Let f(x) = 4
+ 2x. Find f(3y).
A. 11
+ 8y
B. 12
+ 6y
C. 3
+ 3y
D. 4
+ 2y
Answer: B
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The table shown was generated by a graphics calculator. The expression y1 represents f(x).
What is f(1)?
A. 0 B. -2 C. -5 D. Not shown
Factor completely.x3 + x2 - 81x - 81
A. (x + 1)(x2 - 81) B. (x + 1)(x + 81)(x - 81) C. (x + 1)(x + 9)(x - 9) D. (x - 1)(x2 + 81)
Find the probability.A couple has three children. Assuming that each child is equally likely to be a boy or a girl, find the probability that they have at least one girl.
A. 
B. 
C. 
D. 
Solve the problem.An omelette costs $1.00 more than Mario's order of pancakes. After treating his family to breakfast, Mario is sure that 5 omelettes and 4 orders of pancakes cost more than $25 but not more than $40, including tax of 7% and a tip of $3.50. In what price range is an order of pancakes?
A. [$1.65, $3.21] B. ($1.68, $3.23] C. ($1.65, $3.21] D. ($1.68, $3.23)