What is the value of 5 in (and the three on the top​

Let w=23 . what is the value of w + 45 ?

Annabelle's homework is 75% it took her three hours how long should she estimate it will take her to complete her homework.

Acertain group of women has a 0.640.64% rate of red/green color blindness. if a woman is randomly selected, what is the probability that she does not have red/green color blindness? what is the probability that the woman selected does not have red/green color blindness? nothing (type an integer or a decimal. do not round.)