Help me please answer 3,4,7,8,9,10

extra points and i’ll give brainliest

2x - 20 = 32 20 - 3x = 8 6x - 8 = 16 -13 - 3x = -10

Justin has 750 more than eva and eva has 12 less than justin together they have a total of 63 how much money did

Ms.ortiz sells tomatoes wholesale. the function p(x)=-80x^2+320x-10, graphed below, indicates how much profit she makes on a load of tomatoes if she makes on a load of tomatoes if she sells them for 4-x dollars per kilogram. what should ms.ortiz charge per kilogram of tomatoes to make on a load of tomatoes?