There are 83 Grade 7 students in Queenston Junior High School. The number of boys is 31 less than 2 times the number of girls. How many boys and girls are there?

Find the complete factored form of the polynomial 40m^3n^2+45m^2n^6

Successful implementation of a new system is based on three independent modules. module 1 works properly with probability 0.96. for modules 2 and 3, these probabilities equal 0.95 and 0.90. compute the probability that at least one of these three modules fails to work properly.

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.