The table shows information about all students doing GCSE's at a school. Year 10Year 11Total
Girls60110170
Boys14080220
Total200190390

What fraction of the boys are in Year 11?
Give your answer in its simplest form

1. writing an equation for an exponential function by 2. a piece of paper that is 0.6 millimeter thick is folded. write an equation for the thickness t of the paper in millimeters as a function of the number n of folds. the equation is t(n)= 3. enter an equation for the function that includes the points. (-2, 2/5) and (-1,2)

Asurvey of 2,000 doctors showed that an average of 3 out of 5 doctors use brand x aspirin. how many doctors use brand x aspirin

Can someone me with my math problems i have a bunch. i will give brainliest and lots of pleeeaaasssee