Lena had $24 at the beginning
the movie ticket was $6
it's just basic algebra
No one got the correct answer. The answer is supposed to be 7(2d+3k-dk-1). All the coefficients are divisible by 7, thus only the integers are changed. However, the variables cannot be a factor because they do not have the same variables that all the coefficients must have.
1/4 of 80 is 20, so they have 60 left aftef yesterday. then sold 3/5 of 60 which is 36. so the book store has 24 left
She has 133 gallons of milk left.
365+380=745.
In total for the day she had 745 gallons but sold 612
745-612= 133 gallons left
I would say that 0.36 is 36/100.
