In a recent survey at school, every student was asked to choose their favorite type of music. The circle graph shows the results. a. The school has about 1300 students. Predict the number of students at the school who chose Country or Techno. Round to the nearest person. b. Every student at the school was surveyed and the number of students at the school who chose Rock or Hip Hop is 650. Approximate the number of students who attend the school. Round to the nearest person.

answer: first option i.e. 'a' is correct.

step-by-step explanation:

since we have given that

number of minutes to wrap a small gift box = 4 minutes

we need to find the number of gifts to be wrapped in 5 minutes

since there is a direct variation, as the number of minutes will increase with   number of gifts to be wrapped.

so, let the number of gifts to be wrapped in 5 minutes be x.

so, it becomes,

hence, first option 'a'   is correct.

answer: (-6,3)

step-by-step explanation:

a_n = a_1 + (n - 1)d

the first term is 6.

the common difference d = ?

when you find d, replace n with 7 and d with the common difference to find your answer.