At a school number of boys : number of girls = 11 : 9 there are 124 more boys than girls. work out the total number of students at the school.

41/2 - 1 1/3 what is the answer as a fraction?

Bismuth-210 is an isotope that radioactively decays by about 13% each day, meaning 13% of the remaining bismuth-210 transforms into another atom (polonium-210 in this case) each day. if you begin with 233 mg of bismuth-210, how much remains after 8 days?

Write an equation in point-slope form for the line through the given point that has the given slope (-2,-7); m=-3/2