14 is 70% of what number

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

Which expression is equivalent to 2x^2+7x+4?

If a baby uses 15 diapers in 2 days how many diapers will the baby use in a year