What is the equation in vertex form and standard form?

Agrocery sells green apples and red apples. on monday , the store put 500 of each kind of apple on display. that day, the store sold 42 red apples and 57 green apples.on tuesday the store sold 87 red apples and 75 green apples. on wednesday, the store sold 29 red apples and 38 green apples

Which expression is equivalent to (4 +6i)^2? ? -20 + 48i 8 + 12i 16 - 36i 20 + 48i

Find two numbers if their sum is 91 and the ratio is 6: 7?