11.16 writing expressions

the sum of twice a number and 16

• 2 + 16

• 16x + 2

• 2x + 16

• 2 + 16x

one-third of a number

• 1/3 + x

• 3x

• 1/3x

• 1/3 - x

2 less than 45

• 2 - 45

• 45 - 2

• 2 + 45

• 45 + 2

g divided by 9

• 9g
• g-9
• g/9
• 9/g

Amount you have spent if you buy a shirt for $20 and jeans for x dollars

• 20-x
• 20+x
• x-20
• 20x

Write an expression for: the sum of a number and 9

• n - 9

• n * 9

• n + 9

• n/9