After a special medicine is introduced into a petri dish containing a bacterial culture, the number of bacteria
1
remaining in the dish decreases rapidly. The number of bacteria decays by a factor of every
6.7
15
minutes, and can be modeled by a function, N, which depends on the amount of time, t (in minutes).
Before the medicine was introduced, there were 90,000 bacteria in the Petri dish.
Write a function that models the number of bacteria t minutes since the medicine was introduced.

Aboard game uses a fair six-sided die and a spinner with five equal-sized sections colored dark blue, green, light blue, red, and yellow. players roll the die and then spin the spinner. match each probability statement to its correct value.

Problem melissa is her dad build a walkway in their backyard. the walkway will be 54 feet long and 1.5 feet wide. the local hardware store sells tiles which are 1.5 by 1.5 feet and come in boxes of 12. how many boxes of tiles do they need?

Jessica and martha each have a bag of cookies with unequal quantities. they have 30 cookies total between the two of them. each of them ate 6 cookies from their bag. the product of the number of cookies left in each bag is not more than 80. how many more cookies will jessica have martha? if x represents the number of cookies jessica started with, complete the statements below.the inequality that describes the relationship between the number of cookies each one of them has is x^2 - x +224 > = 0.jessica has at least cookies more than martha.