Pleas solve this for me
y=x^2-x

Type the correct answer in each box. use numerals instead of words. if necessary, use / for the fraction bar. consider the given table.

The following division is being performed using multiplication by the reciprocal find the missing numbers is 5/12 divided by x/3 equals 5/12 times x/10 equals 1/x

Solve this riddle: i am an odd number. i an less than 100. the some of my digit is 12. i am a multiple of 15. what number am i?