Pl i need help this is due 12:00 am i reaally wanna finish before i get in troubleee!!!

the proportion 75/w=150/100 can be used to find the whole, w. Use the language of the percent to explain whether w is less than or greater than 75.

In the diagram of circle o, what is the measure of zabc?

Money off coupons have been circulated to 300 households. only 2/5 of these were redeemed (used) in the local supermarket to get a free shampoo. what fraction of coupons were unused? (ps: write how you got the answer)

Monitors manufactured by tsi electronics have life spans that have a normal distribution with a standard deviation of 1800 hours and a mean life span of 20,000 hours. if a monitor is selected at random, find the probability that the life span of the monitor will be more than 17,659 hours. round your answer to four decimal places.