Lisa cuts 3 grapefruits in half. Each grapefruit half has 8 segments. Write an expression that uses parentheses to group two factors. Solve

3 (2 x 8)

This shows that you start with three grape fruits and by dividing them eat into half, you are creating six total pieces which would be 3*2.

Each of these pieces has eight segments, so that would be eight groups of six.