Solve the problem.Persons taking a 30-hour review course to prepare for a standardized exam average a score of 620 on that exam. Persons taking a 70-hour review course average a score of 770. Find a linear function S(t), which fits this data, and which expresses score as a function of time.

A. S(t) = 3.75t + 507.5
B. S(t) = 3.375t - 511.5
C. S(t) = -3.75t + 507.5
D. S(t) = 3.375t + 511.5


Answer: A

Mathematics

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Graph the system of inequalities.3x - 2y ? 6    x - 1 > 0

A.

B.

C.

D.

Mathematics

Solve.The table below shows the population of four states in selected years. Population of Four States from 1960 to 2000 Source: US Census Bureau?  1960  1970  1980  1990  2000  Illinois  10,081,158  11,110,285  11,427,409  11,430,602  12,051,683  Michigan  7,823,194  8,881,826  9,262,044  9,295,297  9,679,052  Indiana  4,662,498  5,195,392  5,490,212  5,544,159  6,045,521  Minnesota  3,413,864  3,806,103  4,075,970  4,375,099  4,830,784How much did the population of Minnesota increase from 1,980 to 2,000?

A. 455,685 B. 456,685 C. 753,814 D. 754,814

Mathematics

Solve the application.According to nutrition facts on a box of cereal, the serving size for the cereal is  cup. How many servings of the cereal can be placed in a container that holds 16 cups?

A. 33 ounces B. 8 servings C. 32 servings D. 4 servings

Mathematics

Multiply.(x - 4)(-2x + 12)

A. -2x2 + 20x + 20 B. -2x2 - 48x + 20 C. -2x2 + 20x - 48 D. -2x2 + 18x - 48

Mathematics