MATRICES I need help with 82 not the numbers just the interpreted result. So I just need help with what the end result means.

Given the sequence 7, 14, 28, 56, which expression shown would give the tenth term? a. 7^10 b. 7·2^10 c. 7·2^9

Which of the following could be the ratio of the length of the longer leg 30-60-90 triangle to the length of its hypotenuse? check all that apply. a. 313 6 b. 3: 215 c. 18: 13 d. 1: 13 e. 13: 2 of. 3: 15

Laura read 1/8 of a comic book in 2 days. she reads the same number of pages every day. what part of the book does she read in a week