Find x, y,and z if (3 x 5) to the power of 4 X (2x3)to the power of 5 x (2x5) to the power of 7=2x 3y x5z

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 is the correct ratio for converting kilograms to grams

If you had $1,900,000, how many days would it take you to spend all if you spent $1 a second. (there are 86,400 seconds in a day)