Aclass contains 13 girls and 15 boys.
what is the ratio of boys to girls?
how many students are there in all?
what fraction of the students are girls?

Nine more than four times a number is the same as one less than twice the number. find the number?

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%

What additional information is needed to prove that the triangles are congruent using the aas congruence theorem? o lolm o oama o zloa zlma o zlao – zlam