Mrs. Henry needs to buy new whiteboard pens. She needs to have at least 30 pens. She has 10 already and needs to buy new boxes. The boxes come in sets of 4. How many boxes does she need to buy to have at least 30 pens? what is also the algebra equation and work? Somebody, please help I need to turn this in at 4; 00 pm today.

step-by-step explanation:

it's is b

answer: 1 + 1 = 11

step-by-step explanation:

step-by-step explanation:

no, her answer is not correct.   we square the lengths of all sides and then determine whether the pythagorean theorem holds here:

9² + 15² = 306.   this is not equal to the square of the longest side ( that square being 395.   answer c is correct.

hello, there is a new name in town and that's the human spider!

answer: d.) the total number of protons and neutrons is 15

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