In a school, 55% of the pupils are boys. Out of the boys, the ratio of those with black, brown and blonde hair is 4:4: 2.
What percentage of the pupils are boys that do not have blonde hair?
%

Tod does not have any cookies. david gives jeff 8 cookies. then he splits half of the cookies he has left with tod. david let’s c represent the number of cookies that he starts with. he finds the number of cookies that tod has is 1/2 the difference of c and 8. write an expression to represent the number of cookies that tod has.

If a is a nonzero real number then the reciprocal of a is

At oaknoll school, 90 out of 270 students on computers. what percent of students at oak knoll school do not own computers? round the nearest tenth of a percent.