Uma wants to buy a video game system for $400. she has $50 and is saving $25 each week. solve the equation 25w + 50 = 400 to find how many weeks w it will take uma to save enough to buy the system.

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

The graph represents the gallons of water in a water tank with respect to the number of hours since it was completely filled

The area of a rectangle is 54x^9y^8 square yards.if the length of the rectangle is 6x^3y^4 yards,which expression represents the width of the rectangle in yards