Acorner store sells two kinds of baked goods: cakes and pies. a cake costs $5 and a pie costs $7. in one day, the store sold 15 baked goods for a total of $91. how many cakes did they sell?
-i know the answer is 7, but how do you solve it? what's the work?
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Browning labs is testing a new growth inhibitor for a certain type of bacteria. the bacteria naturally grows exponentially each hour at a rate of 6.2%. the researchers know that the inhibitor will make the growth rate of the bacteria less than or equal to its natural growth rate. the sample currently contains 100 bacteria.the container holding the sample can hold only 300 bacteria, after which the sample will no longer grow. however, the researchers are increasing the size of the container at a constant rate allowing the container to hold 100 more bacteria each hour. they would like to determine the possible number of bacteria in the container over time.create a system of inequalities to model the situation above, and use it to determine how many of the solutions are viable.

Louis wants to carpet the rectangular floor of his basement the basement has an area of 864 square feet the width of the basement is 2/3 its length what is the length of lewis's basement

Whit h equation best represents this situation the number 98 increased by an unknown number equal to 120