Lisa had a set of 12 toy cars. then she gave her sister 3 cars. what fraction of lisa's set did lisa give to her sister.

Yosef can eat 21 jamuns while rose can eat just 15 . complete the blank. yosef can eat % more jamuns than rose.

Tom can paint the fence in 12 hours, but if he works together with a friend they can finish the job in 8 hours. how long would it take for his friend to paint this fence alone?

Peter measures the angles in a triangle. he finds that the angles are 95, 10 and 75. is he correct? explain your answer