Answer:
353.6
Step-by-step explanation:
White blood cells in average drop of blood = 1.6 * 104 = 166.4
White blood cels in rare drop of blood = 5 * 104 = 520
Difference between the number of white blood cells in a rare drop of blood and the number of white blood cells in an average drop of blood
= 520 - 166.4 = 353.6
Lauren needs to sell 6 more tickets to reach her goal. 30- (12x2) 12x2=24 30-24=6
[1] -5y + 8x = -18
[2] 5y + 2x = 58