A car bought for $2500 is sold for $2000. What is the loss as a percentage of the cost price? Please help.

The ratio of the perimeters of two similar triangles is 4: 3. what are the areas of these triangles if the sum of their areas is 130cm2?

What are the solutions for the following system? -2x^2+y=-5 y=-3x^2+5

Aski resort is charging $37.50 to rent a snowmobile for 5 hours. at this rate what will be the cost for a family of 5 to rent snowmobiles for 3 hours on the first day of their vacation and 4 hours for on the last day of their vacation