When the fractiin refers to the same whole and have the denominator..explain why you can compare only the numerators

Liesl grew 7/12 of a foot in one year. her little sister grew 1/3 of a foot during that same year. how much more did liesl grow than her little sister did

Use the graph of the sine function y=2sinθ shown below

Cody was 165cm tall on the first day of school this year, which was 10% taller than he was on the first day of school last year.