Provide an appropriate response.Solve the following equation: 3.5x + 6.4 = 7.8
Fill in the blank(s) with the appropriate word(s).
0.4
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Find the product.(x - 7)(x + 7)
A. x2 - 49 B. x2 + 14x - 49 C. x2 - 14x - 49 D. x2 - 14
Solve the problem.In 1980, the population of a city was 6.8 million. By 1992 the population had grown to 9.5 million. Find the average rate of change in population from 1980 to 1992..
A. 
million per year
B. 
million per year
C. 
million per year
D. 
million per year
Write the whole number in standard form.Eight thousand, one hundred seventy-six
A. 8076 B. 80,176 C. 800,176 D. 8176
Solve the problem.An event planner expects about 188 people at a wedding. He knows that this estimate could be off by 
(more or fewer). Food for the event costs $46 per person. How much might the event planner's food expense be?
A. between $0 and $10,258 B. between $4970 and $8190 C. between $7038 and $10,258 D. Not enough information is provided.