Find the product.(x - 7y)(x - 2y)
A. x - 9xy + 14y
B. x2 - 12xy + 14y2
C. x2 - 9xy + 14y2
D. x2 - 9xy - 9y2
Answer: C
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Solve the problem.A box of instant brownies has the list of ingredients shown in the table. Use this information to find the amount of the stated ingredient you would need to make the indicated number of servings.
Water3 tablespoonsOil
cupNuts
cupBrownie Mix2
cupsAmount of nuts for 16 servings
A. 
cup
B. 1
tablespoon(s)
C. 
cup
D. 
cup
Convert to scientific notation.0.0000000838011
A. 8.38011 × 108 B. 8.38011 × 10-7 C. 8.38011 × 10-9 D. 8.38011 × 10-8
The Richter scale converts seismographic readings into numbers for measuring the magnitude of an earthquake according to this function M(x) = log 
, where x0 = 10-3.What is the magnitude of an earthquake whose seismographic reading is 6.5 millimeters at a distance of 100 kilometers from its epicenter? Round the answer to the nearest tenth.
A. 3.8 B. 2.4 C. 2.8 D. 812.9
Body surface area (BSA) is often used to calculate dosages for some drugs. BSA is calculated in square meters using a person's weight and height.BSA = 
Calculate the BSA for an adult whose height is 62 in. and weight is 177 lb. Round to the nearest hundredth, if necessary.
A. 2.12 sq m B. 5.9 sq m C. 1.87 sq m D. 18.67 sq m