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?​ ​​ ​

Can you give me little more information

Here is a picture  of the net. its 4 squares in a row diagonal and on the third draw one square aove and under

Amath expression is a collection of one or more terms, which are separated by the signs ( + , - , x , / ).example :   8+b8+b  or  a−3a−3in algebra, an equation is a mathematical statement with two expressions where, each expression is separated by an equal (=) sign. variables can be present on both the sides of the equality (=) sign and we use letters to denote such variables.example 1:   x=4+2x=4+2  , [here, we can observe that the variable is present only on one side of the equation].example 2:   2x+3=x+42x+3=x+4  , [here, we can observe that the variables are present on both side of the equation].

I'm pretty sure it's c. extremely gradual but not 100% sure though.