The mathematics faculty at a college consists of 1111 professors, 1212 associate professors, 77 assistant professors, and 44 instructors. if one faculty member is randomly selected, find the probability of choosing a professor or an instructor.

step-by-step explanation:

in the absence of parentheses, i will have to make some assumptions:   i interpret your (3x+5/y^6)(4y^3/5)​ to mean:

3x + 5     4y^(3/5)       (3x + 5)(4)

* =

    y^6             1               y^(6-3/5)

if this is not what you expected, repost your question using parentheses to indicate whether you meant

4y^3

    or   4y^(3/5)

    5

a. she will receive a refund of $278.

step-by-step explanation: