Tim uses 1/2 of a bottle of hot sauce for every batch of salsa he makes. yesterday, he used 2 1/2 bottles of hot sauce. how many batches of salsa did he make?

Average acceleration: i have no idea how to do this.

The cost of using a service is $0.25 per min. what equation correctly represents the total cost c, in dollars, for d days of use?

Square a has a side length of (2x-7) and square b has a side length of (-4x+18). how much bigger is the perimeter of square b than square a?and show all work! you so