Problem: john left home and drove at the rate of 50 mph for 2 hours . he stopped for lunch then drove for another 3 hours at the rate of 55 mph to reach his destination . how many miles did john drive ?
Rationale: "the total distance d traveled by john is given by d = 50 * 2 + 3 * 55 = 265 miles . answer d"
annotated_formula: add(multiply(50, 2), multiply(3, 55))