I need help with my math assignment​

1. convert. simplify your answer and write it as a proper fraction or as a whole or as a mixed number.4oz =_ pounds2. what is 1/3 of 66for both show work.

Acertain standardized? test's math scores have a? bell-shaped distribution with a mean of 520 and a standard deviation of 105. complete parts? (a) through? (c)

Find the number of real number solutions for the equation. x2 + 5x + 7 = 0 0 cannot be determined 1 2