SAT 2

A painter will paint n walls with the same size and shape in a building using a specific brand of paint. The painter’s fee can be calculated by the expression nKAh, where n is the number of walls, K is a constant with units of dollars per square foot, l  is the length of each wall in feet, and h is the height of each wall in feet. If the customer asks the painter to use a more expensive brand of paint, which of the factors in the expression would change?

• h

• l

• k

• n

If 3r = 18 , what is the value of 6r +3?

• 6

• 27

• 36

• 39

The number of states that joined the United States between 1776 and 1849 is twice the number of states that joined between 1850 and 1900. If 30 states joined the United States between 1776 and 1849 and x states joined between 1850 and 1900, which of the following equations is true?

• 30x= 2

• 2x = 30

• x/2 = 30

• x + 30 = 2

• 10

• 5

• 2

• 1/2

The function f is defined by a polynomial. Some values of x and f(x) are shown in the table above. Which of the following must be a factor of f(x) ?

The line y = kx + 4, where k is a constant, is graphed in the xy-plane. If the line contains the point (c, d), where c ≠ 0 and d ≠ 0, what is the slope of the line in terms of c and d ?

• 10

• 12

• 14

• 16

In the figure above, lines k, A , and m intersect at a point. If x + y = u + w, which of the following must be true?

I. x= z

II. y = w

III. z = t

• I and II only

• I and III only

• II and III only

• I, II, and II