Well 344 rounded to the nearest hundred is 300 so times 24 its 7,200 add 4 is 7,204 but take away 12 is 7,192 and there's your answer
5-5/4--1= 0/5=undefined slope. This is a line that goes up and down and cannot exist in a function
Percent that are girls = 100-40 = 60%
As a decimal 60% is 0.6.