Which explanation best describes how to solve this problem?

tanya used 170 gold stars and 140 silver stars to decorate 10 cards. she put the same number of stars on each card.

how many stars did tanya put on each card?

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.

Can some one explain this i got sent this. is this a threat i’m scared

You eat $0.85 for every cup of hot chocolate you sell. how many cups do you need to sell to earn $55.25