Question

Hailey just had lunch at the Sushi Palace, and she wants to leave an 18% tip. She writes the expression b + 0.18b to compute her bill with a tip, where b is her bill before the tip.

Which expression is equivalent to Hailey's expression?
A) 1.18b
B) 0.18(2b)
C) 1.18(2b)
D) 2(1.18b)

Answer 1

A) 1.18b

Explanation:

Answer 2

A) 1.18b

Explanation:

Hailey writes the expression
`b+0.18b` to compute her bill with a tip, where b is her bill before the tip.

Use dictributive property:

`a\cdot (b+c)=a\cdot b+a\cdot c`

In the expression
`b+0.18b,` we can write b before brackets:

`b+0.18b=b(1+0.18)=1.18b`