Finding the original price: the dept store had a 15% off sale on all merchandise. they took in $8,500 on the first day of the sale . if they had sold the same merchandise at the original price, how much would have been taken in?

Find parametric equations for the line tangent to the curve of intersection of the surfaces at the given point. surfaces: xsquared2plus+2yplus+2zequals=1212 yequals=33 point: left parenthesis 1 comma 3 comma five halves right parenthesis

Ivan and jeff buy a package of 8 pens for $4.00. ivan wants 5 of the pens, and jeff wants 3.how much should each student pay?

Nine more than four times a number is the same as one less than twice the number. find the number?