Please help!
An answer to any question would be very helpful (except for question 4) thank you!

What is an equation of the line that passes through the point (-2,3) and is parallel to the line whose equations is y=3/2x-4? i am stuck between y=3/2x or y=3/2x+6 : (

Julie buys 2kg of apples and 7kg of pears ? 12.70. the pears cost ? 1.30 per kilogram what is the price per kilogram of the apples? show your working out

1) prove that 731^3−631^3 is divisible by 100 2) prove that 99^3−74^3 is divisible by 25