Andrea had 32 problems to do for mathematics homework over the weekend. she did 1/4 of the problems on friday night, and on saturday she did 1/4 of the problems that were left to do. what was the total numbers of problems that andrea needed to do on sunday in order to complete her mathematics homework?

Number of problems that is left for Andrea to on Sunday =18

Step-by-step explanation:

Total number of problems Andrea had = 32

Problems solved by Andrea on Friday night was of the problems which is =  

Problems now left =

Problems solved by Andrea on Saturday night was of the problems left which is =  

∴ Number of problems that is left for Andrea to on Sunday=

answer:   x = 3 + √11     and     x = 3 - √11

step-by-step explanation:

x² - 6x + 9 = 11

(x - 3)² = 11

x - 3 = ±√11

    x = 3 ± √11

x = 3 + √11     and     x = 3 - √11

you didn't post any answer choices, so its not 100% clear what your teacher is looking for

however, log(15/7) is equivalent to log(15) - log(7)

i'm using the rule log(x/y) = log(x) - log(y)