2. Solve for y. 2x – 17y – 2x = 13 – 2x – 17y= 13 – 2x – 17 – 17 y= 13 – 2x – 17 Example 8-1c
3. Solve P = 2l + 2wfor w. P– 2l= 2l + 2w– 2l P – 2l= 2w 2 2 w= P – 2l 2 Example 8-1c
4. A car’s fuel economy Eis given by the formula where mis the number of miles driven and g is the number of gallons of fuel used. Solve the formula for m. If Claudia’s car has an average fuel economy of 30 miles per gallon and she used 9.5 gallons, how far did she drive? Answer: She drove 285 miles. Example 8-3a
5. Geometry The formula for the volume of a cylinderis , where r is the radius of the cylinder and h is the height. Solve the formula for h. Example 8-4a
