A membership at Gisele's Gym costs $145 to join and $3 for each visit. A membership at Freddie's Fitness costs $75 to join and $5 for each visit.

At how many visits will both cost the same?

1) define the variables: c = cost and v = total visits.

2) write the equations.

3) solve using substitution OR elimination.

Determine whether the following statements are true and give an explanation or counterexample. bold a. when using the shell method, the axis of the cylindrical shells is parallel to the axis of revolution. bold b. if a region is revolved about the y-axis, then the shell method must be used. bold c. if a region is revolved about the x-axis, then in principle it is possible to use the disk/washer method and integrate with respect to x or the shell method and integrate with respect to y.

Simplify (2^5/3^2)^4 a. 2^20/3^8 b. 2^9/3^8 c. 8^5/12^2 d. 2/3^2

Factor the polynomial by its greatest common monomial factor.