A 4 ft lighting track equipped with three fixtures costs $45. Fluorescent bulbs for the fixtures cost $15 each. Write out a mathematical statement that gives the total cost for these tracks, with bulbs, plus $9 shipping. Then calculate this total.
a) T=45+15×3⁺⁹
b) T=45+3×15⁺⁹
c) T=45×3+15⁺⁹
d) T=45+15+3^×⁹
