What is 3/4 x 2? i tried getting it, but my teacher said it was wrong

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

Which of the following would represent the sum of 3 consecutive integers if x is the first integer?

What is the missing constant term in the perfect square that starts with x^2 -20x