Write the English phrase as an algebraic expression. Let the variable x represent the number.The sum of a number and 38
A. 38x
B. x + 38
C. 38
D. x - 38
Answer: B
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Solve the problem.The sum of a student's three scores is 203. If the first is 13 points more than the second, and the sum of the first two is 17 more than twice the third, what was the first score?
A. 64 B. 77 C. 62 D. 49
Solve the problem.
Three boards are used as shelves in a bookcase. Each one is 1
inches thick and the shelves areevenly spaced. If the height, h, of the bookcase is 42 inches, how much space is between each shelf?
A. 21 inches
B. 14 inches
C. 13 inches
D. 18
inches
Solve the problem.A study in a small town showed that the percent of residents who have college degrees can be modeled by the function 
where x is the number of years since 2005. Does this model indicate that the percent of residents with a college degree is increasing or decreasing?
A. Increasing B. Decreasing
Sketch the graph of the function. Describe how the graph can be obtained from the graph of a basic exponential function.f(x) = -3(x + 1)
A. Shift y = 3x left 1 unit(s) and
reflect across the x-axis
B. Shift y = 3x left 1 unit(s) and
reflect across the x-axis
C. Shift y = 3x right 1 unit(s) and
reflect across the x-axis
D. Shift y = 3x right 1 unit(s) and
reflect across the x-axis