Use the elimination method to determine the cost of one package of toilet paper and one gallon of hand sanitizer.
Isolate x:
Isolate y:

10x + 6y= 63.50
8x + 12y = 85

1/3(x-10)=-4 solve for x with steps

David must install fencing around a lot that is shaped like a right angle.the side of lot that runs east-west is 200 ft long.the side of the lot runs north-south is 125 ft long.calculate how many feet of fencing he will need to surround the entire lot.

To finance her community college education, sarah takes out a loan for $2900. after a year sarah decides to pay off the interest, which is 4% of $2900. how much will she pay