Idon’t understand if you answer and explain you get extra points with brainiest

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

Find the required measurements of the following trapezoids. a = 8 cm b = 16 cm h = 10 cm

Lucy and donavan measured the length of the school garden. lucys measurement is 11.3m and donavans measurement is 113 cm. could both be correct? explain