AnswersGrade 7 MathematicsWriting and Evaluating Expressions

Writing and Evaluating Expressions — Quiz Answers

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After substituting, what is the first step when evaluating x plus 3 x minus 4 point 2 when x is equal to 5 ?

A
Subtract 4 point 2 from 5 .
B
Add 3 and 4 point 2 .
C
Add 5 and 3 .
D
Multiply 3 by 5 .
9

An on-demand movie company charges 2 point 9 5 dollars per movie plus a monthly fee of 39 point 9 5 dollars Which expression represents the yearly cost for x movie rentals?

A
2 point 9 5 x plus 39 point 9 5
B
39 point 9 5 x plus 2 point 9 5
C
2 point 9 5 x minus 39 point 9 5 repeating 12
D
2 point 9 5 x plus 39 point 9 5 repeating 12
10

In the expression 7 m over 9 plus 6 r minus 4 fifths , what are the coefficients?

A
7 ninths and 6
B
7 ninths and negative 6
C
7 ninths and negative 4 fifths
D
negative 4 fifths and 6

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