My sister is 1414 years older than i am. the sum of our ages is 5252. find our ages.

Find the y-intercept and x-intercept for the equation 5x-3y=60 what is the y-intercept

Ineed with question three. i don't understand how i'm supposed to achieve 3 marks.

A0.40 kg soccer ball is kicked so that its incoming velocity of 5 m/s is changed to an outgoing velocity of -25 m/s. what impulse does the player apply to the ball?