Simplify 3:60:96: Calculate r, if 5:r=30:8 or 5/r=30/8
Calculate n, if n:4=58:19

Please give answers with working... :)

Find the value of x that will make l ll m

Acone with volume 1350 m³ is dilated by a scale factor of 1/3. what is the volume of the resulting cone? enter your answer in the box. m³

Can someone factor this fully? my friend and i have two different answers and i would like to know if either of them is right. you in advance. a^2 - b^2 + 25 + 10a