10. Gavin collects a certain type of seashell. He has 160 seashells. The seashells’ weights are distributed normally, with a mean of 120 grams and a standard deviation of 26 grams. How many of the seashells weigh at least 68 grams?

A. 156
B. 134
C. 152
D. 109

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

muyb ajo

step-by-step explanation:

jegosu