What’s equivalent to -3 ( 4x - 2 ) - 2x?

Keisha makes a large sandwich for a family picnic she takes 1/2 of them the sandwich to the picnic her family eats 3/8 of the whole sandwich what fraction of the whole sandwich does keisha bring back from the picnic

You receive 15% of the profit from a car wash how much money do you receive from a profit of 300

10% of 1,900,000. show me how you got the answer