There is a bag with only red marbles and blue marbles. The probability of randomly choosing a red marble is 7/8
.
There are 56 marbles in total in the bag and each is equally likely to be chosen.
Work out how many red marbles there must be.

step 1. if the probability of choosing a red marble is 7/8 then 56(7/8) is red

step 2. 56 (7/8) = 49.

step 3. red = 49, blue = 7.

answer: there are x+184 pages in olivia's book.

step-by-step explanation:

let the total number of pages in the book which olive has already read be x.

then if olive has 184 pages left to read, then the total number of pages are in olive's book= pages she has read+pages she has left to read

therefore, the total number of pages in olivia's book=

hence, there are x+184 pages in olivia's book.

the answer is y < -3 or   y > 3

-3y > 7 + 2

-3 y > 9

y < -3