Identify Terms, Write and Evaluate Expressions

What are the variables of 7x+6y-9

• 6,7

• 9

• 6y, 7x

• x, y

Write the phrase as an expression. "the product of a number m and 23"

• m⋅23 or 23m

• 23m

• m+23

• m⋅23

Write the phrase as an expression. "a number x divided by 2"

• 2÷x

• 2x

• x÷2

• x

How many terms are in the following expression?
2x+4y+8-2

• 1

• 2

• 3

• 4

The sum of 13 and twice a number h

• 13 + 2h

• 13 - 2h

• 13 x 2h

• 13 / 2h

Evaluate expression: 5a + b for a= 6 and b= 3

• 33

• 36

• 30

• 59

I open a saving account with $200 and plan to put $50 per month in the account.
Which expression represents this situation after x number of months?

• 200 + 50x

• 200x + 50

• 200 + x + 50

• 12x(50 + 200)

2x + 3 + x²; for x = 4

• 17

• 27

• 19

• 25

Evaluate the expression when x = 8:  
7(6 + 3 − x)

• 72

• 56

• 21

• 7

Translate:
42 less than a number x

• 42 - x

• x - 42