On​ ​the​ ​Great​ ​Barrier​ ​Reef,​ ​how​ ​warm​ ​does​ ​the​ ​water​ ​need​ ​to​ ​be​ ​for​ ​corals​ ​to bleach?​ ​​ ​ b. How​ ​many​ ​weeks​ ​did​ ​the​ ​temperatures​ ​exceed​ ​the​ ​‘bleaching​ ​limit’? c. How​ ​many​ ​degrees​ ​above​ ​the​ ​bleaching​ ​limit​ ​did​ ​the​ ​sea​ ​surface temperature​ ​rise​ ​during​ ​the​ ​week​ ​of​ ​Feb​ ​18th,​ ​2017?​ ​​ ​

To solve this system of equations by elimination, what operation could be used to eliminate the y-variable and find the value of x? 6x + 5y = 2 4x + 2y = 8 a) subtract 2 times the second equation from 3 times the first equation b) subtract 3 times the second equation from 2 times the first equation c) subtract 5 times the second equation from 2 times the first equation d) subtract 2 times the second equation from 5 times the first equation