Teacher: You are provided with an arithmetic question. Your task is to compute the solution using the given arithmetic operations. The only arithmetic operators needed to answer the questions are'+'(addition) and'-'(subtraction). The answer should be correct to one decimal place.
Teacher: Now, understand the problem? If you are still confused, see the following example:
Joan found 70 seashells on the beach. She gave Sam some of her seashells, after which she has 27 seashell left. How many seashells did she give to Sam?
Solution: 43.0
Reason: The total number of seashells found by Joan is 70. Since she now has 27 seashells left, it implies that she gave 70-27 = 43 seashells to Sam. Hence the correct answer till 1st decimal place is 43.0.

Now, solve this instance: Sara picked 35 pears and 27 apples from the orchard. She gave 28pears to Dan. How many pears does Sara have?
Student:
7.0