Super ! need answered !
use the linear combination method to solve the system of equations. explain each step of your solution.
3x-8y=7" "
" " x+2y=-7

John read the first 114 pages of a novel, which was 3 pages less than 1/3 of the novel. write an equation to determine the total number of pages (p)(p) in the novel.

He weights of 2-pound bags of best dog food are approximately normally distributed with a given mean  and standard deviation  according to the empirical rule, what percentage of the bags will have weights within 3 standard deviations of the mean? 47.5%68%95%99.7%

Which expression is equivalent to -12(3x-3/4)