Question

Tyrone's age is 2 years less than 4 times his younger sister's age. If his younger sister's age is b years, which of the following expressions best shows Tyrone's age?

4b
b − 2
2b − 4
4b − 2

Answer 1

4b-2

Explanation:

Answer 2

Four times his sister's age would be 4b. His age is two years less, so we need to subtract 2.

Put together, this is 4b - 2.