400,300,150,75,22.5 is it geometric or arithmetic

Markus receives dollar bills from his grandfathet for one week. On the first day he received $1; on the second day he received $2, on third day he received $4, and on the foruth day he received $8.

It takes one guy 2 hours to wash 1 car. it takes another guy 4 hours to wash the same car. how long for them to wash two of the same cars

Which graph represents this system? 3 x + 2 y = negative 6. y = negative three-halves x + 2.

Tiffany has taken out a loan with a stated interest rate of 8.145%. How much greater will Tiffany's effective interest rate be if the interest is compounded weekly than if it is compounded semiannually?

Find all solutions for a triangle with A=30° a=4 b=8

Slope: - 5/7, y-intercept:-2/3

Our difference is 6. We have a sum of 14. what number are we?

Draw an area model to represent 40*60

Which statement about this system of equations is true? y=2/3x y=2/3x+3 1. The system has no solution. 2. The system has a unique solution at (0,0). 3. The system has a unique solution at (0,3). 4. The system has infinitely many solutions.

In a word problem what do X and Y represent?