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Name two molecular parameters that are needed to completely specify the Schulz-Zimm distribution. a) b)

Convert the following decimal number into a fraction or mixed number.  Be sure to reduce your answer to lowest terms.  0.45{“version”:”1.1″,”math”:”0.45″}

Simplify: -40+-63 {“version”:”1.1″,”math”:”-40+-63 ”}

Sophia remodeled her kitchen and bought a new range, a new microwave, a new dishwasher, and a new refrigerator.  The range costs $900{“version”:”1.1″,”math”:”$900″}, the microwave costs $275{“version”:”1.1″,”math”:”$275″}, the dishwasher costs $490{“version”:”1.1″,”math”:”$490″}, and the refrigerator costs $1450{“version”:”1.1″,”math”:”$1450″}.  What was the total cost of the four appliances? 

For a particular cleaning product, it is recommended that 4{“version”:”1.1″,”math”:”4″} ounces of product are diluted using 20{“version”:”1.1″,”math”:”20″} ounces of water.  Which of the following fractions represents the recommended ratio of cleaning product to water? 

Sam’s biweekly paycheck is $1500{“version”:”1.1″,”math”:”$1500″}.  12{“version”:”1.1″,”math”:”12″} of his paycheck is used to pay bills.  15{“version”:”1.1″,”math”:”15″} of his paycheck is deposited into his savings account.  The remainder of his paycheck is used for food and entertainment.  How much money does Sam have available for food and entertainment? 

What is the numerical version of the following number? “Fifty billion, eight hundred nine thousand, seventy-two”

Follow the instructions to convert the given value (i.e., fraction, decimal, percent) to the stated representation.  

Subtract.  Be sure to reduce your answer to lowest terms.   1720-35{“version”:”1.1″,”math”:”1720-35″}

Melissa’s flower shop got a shipment of 252{“version”:”1.1″,”math”:”252″} tulips.  She wants to make bouquets of 12{“version”:”1.1″,”math”:”12″} tulips each.  How many bouquets can Melissa make?