Solve the problem.A rumor is spread at an elementary school with 1200 students according to the model 
where N is the number of students who have heard the rumor and d is the number of days that have elapsed since the rumor began. How many days must elapse for 500 to have heard the rumor?
Fill in the blank(s) with the appropriate word(s).
about 3.4 days
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Write the set in set-builder notation.{2, 4, 6, 8}
A. {x | x is an even natural number less than 10} B. {x | x is any even natural number} C. {x | x is any even integer less than 10} D. {2, 4, 6, 8}
Solve the problem.Two tracking stations are on the equator 122 miles apart. A weather balloon is located on a bearing of N 32°E from the western station and a bearing of N 12°E from the eastern station. How far, to the nearest mile, is the balloon from the western station? Round to the nearest mile.
A. 349 mi B. 248 mi C. 358 mi D. 239 mi
Solve the problem.Stephanie receives a salary of $650 per month plus a commission of 5.5% on the first $3,000 of sales, and 7% of all sales over $3,000. Find Stephanie's gross pay for the month if her sales were $10,360.
A. $2815.20 B. $680.20 C. $1540.20 D. $1330.20
If necessary, write the equation in the standard form ax2 + bx + c = 0. Then identify the values of a, b, and c. Do not actually solve the equation.-6x2 + 8x = 2
A. a = -6, b = -2, c = 8 B. a = -6, b = 8, c = 2 C. a = -6, b = 2, c = 8 D. a = -6, b = 8, c = -2