How do i use a ladder diagram find the prime factorization of 32?

Annabelle's homework is 75% it took her three hours how long should she estimate it will take her to complete her homework.

Will mark ! (10 points also! ) if x varies inversely with y and x =6 when y= 10, find y when x=8 a. y=4.8 b. y=7.5 c. y=40/3 d. y=4/15

By what fraction name for 1 must 2/3 be multiplied to form a fraction with a denominator of 15