Aschool choir has 36 members. there are three times as many underclass men as seniors. how many seniors are in the choir ?

What is the most accurate measurement of 1 pound

Kelly is a salesperson at a shoe store, where she must sell a pre-set number of pairs of shoes each month. at the end of each work day the number of pairs of shoes that she has left to sell that month is given by the equation s=300-15x , where s is the number of pair of shoes kelly still needs to sell and x is the number of days she has worked that month. what is the meaning of the number 300 in this equation

Given the two similar triangles, how do i find the missing length? if a=4, b=5, and b'=7.5 find a'