13) 28% of the students in a biology class are
seniors. If 85 students enrolled in that class,
about how many of them are seniors?

roughly 23.8 (Rounded up is 24) students are seniors

Step-by-step explanation:

First we change 28% to a decimal: 0.28

Multiply 0.28 by 85: 0.28*85=23.8

So roughly 23.8 (rounded up is 24) is the answer

if the pizza is divided equally into 2 equal halves then you would get

πr^2/2

where r is the radius of the pizza.

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