Out of 20 students surveyed, 10 are 7th Graders, 6 are 8th Graders. What percent of the students surveyed are 6th Graders

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

Si la base de un triángulo isósceles mide 70 m y el ángulo opuesto a ésta mide 58°; entonces ¿cuánto mide la altura de dicho triángulo? a) 21.87 m. b) 40.01 m. c) 43.74 m. d) 63.14 m.

What effect would doubling all the dimensions of a triangular pyramid have on the volume of the pyramid? explain your reasoning.