Screenshot expression is equivalent to the given expression?

−(1/2y + 1/4)

a. −1/4 ( 1 + 2y)

b. 1/4(2y − 1)

c. −2(1/4y − 1/8)

d. 2(1/8 − 1/4y)

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65% of students in your school participate in at least one after school activity. if there are 980 students in you school, how many do not participate in an after school activity?

Nikolas calculated the volume of the prism. his work is shown below.