7) a photo booth charges a $500 fee for two hours at a party, plus $50 per additional hour. cindy doesn't want to spend more than $700 on the photo booth rental. what is the maximum number of additional hours (beyond the first two) that cindy can rent the photo booth for her party? a) 3 b) 4 c) 5 d) 6

Which approach to the theory-and-research cycle does the following sequence reflect: (1) specific observations suggest generalizations, (2) generalizations produce a tentative theory, (3) the theory is tested through the formation of hypotheses, and (4) hypotheses may provide suggestions for additional observations?

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What is the number 321,000,000 in scientific notation? also what is the number? ?