the path of a kicked soccer ball can be modeled by the equation y=3x^2. State whether the equation represents a linear or a nonlinear function?

Can someone me my sister? she is in third grade. 50 points and brainlist! ones that are not answered. plz and thx!

Question: what is the value of x 4x-2= (-7) +5x. it would be greatly appreciated if someone could actually explain to me step by step

Kyle and elijah are planning a road trip to california. their car travels 3/4 of a mile per min if they did not stop driving, how many miles could kyle and elijah drive in a whole day? ? 1 day = 24 hours. plzzz i will give you 100 points