55. Find the range of y = 2x + 1.

a. all real numbers
b. all positive numbers
Not sure..

67. Name the Property: -2 + (10+1) = (-2 + 10) + 1
a. Commutative Property of Multiplication
b. Inverse property of addition
c. Commutative Property of Addition
d. Associative Property of Addition
I think it might be C or D

73. Which of the following are in function notation?
a. y = mx + b
b. f(x) = 3x - 1
c. x = 2x + 1
d. (4,5)
B?

75. Name the property: 7 + (4 + 4) = (7 + 4) + 4
a. Inverse Property of Addition
b. Associative Property of Addition
c. Commutative Property of Multiplication
d. Commutative Property of Addition
I'm stuck between B and D...

99. Which property describes (ab)3 = a(b3)?
a. Inverse Property of Multiplication
b. Associative Property of Addition
c. Associative Property of Multiplication
d. Commutative Property of Multiplication
C or D...

Thanks
-MC

55. To find the range of the equation y = 2x + 1, we need to determine the possible values of y. In this equation, y depends on the values of x. Since x can take on any real number, we can substitute a few different values of x into the equation to find the corresponding values of y.

For example, let's consider x = 0:
y = 2(0) + 1
y = 1

And x = 1:
y = 2(1) + 1
y = 3

From these calculations, we can see that y can take on any real number. Therefore, the range of y = 2x + 1 is option a. all real numbers.

67. The property that holds in the equation -2 + (10+1) = (-2 + 10) + 1 is the Associative Property of Addition. This property states that changing the grouping of the numbers being added does not change the result. Therefore, the answer is option d. Associative Property of Addition.

73. Function notation is represented by a letter followed by parentheses containing the input variable. From the options given, only option b. f(x) = 3x - 1 is written in function notation because it includes the letter "f" followed by parentheses containing the input variable "x".

75. The property that holds in the equation 7 + (4 + 4) = (7 + 4) + 4 is the Associative Property of Addition. This property states that changing the grouping of the numbers being added does not change the result. Therefore, the answer is option b. Associative Property of Addition.

99. The property that describes (ab)3 = a(b3) is the Associative Property of Multiplication. This property states that changing the grouping of the numbers being multiplied does not change the result. Therefore, the answer is option c. Associative Property of Multiplication.

Final answers:
55. a. all real numbers
67. d. Associative Property of Addition
73. b. f(x) = 3x - 1
75. b. Associative Property of Addition
99. c. Associative Property of Multiplication