Final answer:
Tessa solved approximately 1 problem.
Step-by-step explanation:
Tessa made 27 out of 36 free throws, which means she made 27 out of every 36 attempts. To find out how many problems she solved, we can set up a proportion.
27/36 = x/1
Cross-multiplying, we get 27 = 36x. Dividing both sides by 36, we find that x = 27/36, which simplifies to 3/4. Therefore, Tessa solved 3/4 of the problems.
Since the answer options are given in whole numbers, we can simplify 3/4 to the nearest whole number. The closest whole number to 3/4 is 1, so Tessa solved approximately 1 problem.