You set up a lemonade stand to raise money for your soccer tournament. You plan to sell cups of lemonade for $1.50/each. Your recipe calls for 8 lemons, 2 cups of sugar and 8 cups of water to yield 10 cups of lemonade.
You open your lemonade stand with 80 lemons, 3 bags of sugar containing 6 cups each, and 10 gallons of water (16 cups per gallon). What is the maximum you can make with the supplies on hand?
A) $112.50
B) $135
C) $75
D) $90

The maximum you can make with the supplies on hand is:

Explanation:

The requirements for the recipe are: 8 lemons, 2 cups of sugar and 8 cups of water to yield 10 cups of lemonade, so you must divide the total supplies into the requirements for the recipe and see how many glasses each reaches:

As you can see, although in water there are supplies for 200 glasses of lemonade or in lemons there are supplies for 100, sugar only allows 90 glasses of lemonade, so you must use this value to calculate the income from the sale of lemonade, the which, since it is worth $ 1.50 per glass you have:

a c d and f

just finished the assignment

answer is: c. the experiment shows that the red substance experienced a chemical change.

this is chemical change (chemical reaction), because two new substances are formed (metalig liquid and gas), the atoms are rearranged and the reaction is followed by an energy change.

this is example of chemical decomposition.

chemical decomposition (analysis) is the separation of a single chemical compound into its two or more elemental parts or to simpler compounds.  

chemical decomposition is opposite of chemical synthesis.