Solve the problem.Let x represent the number of gallons of gas sold at $2.50 per gallon, and let y represent the total cost of the gasoline (in dollars). Write an equation for this situation. Then give the ordered pair with an x-value of 10 associated with this equation.
A. y = 2.50 + x; (10, 12.50)
B. x = 2.50y; (10, 4.00)
C. y = 2.50x; (10, 25.00)
D. x = 2.50 + y; (10, 7.50)
Answer: C
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Solve and check.7.7 = 5.5x
A. x = 14 B. x = 1.4 C. x = 0.14 D. x = 2.4
Answer the question(s) based on the following situation: For a population of 4000 students taking the SAT math exam, the scores on the exam have an approximately normal distribution with mean ? = 610 and standard deviation ? = 60.A score of 700 has an approximate standardized value of
A. 2. B. 1.5. C. -1.75. D. -1. E. none of these
Provide an appropriate response.If f(x) = 
+ 2x, find: (a) f(1) and (b) f(-1).
Fill in the blank(s) with the appropriate word(s).
Use the properties of exponents to simplify the expression. Write with positive exponents.64
1/3
A. 
B. 
C. 4a2b6
D. 