5. Tudor are 40 de lei. El cumpara 2 mingi 3 tricouri s 2 perechi de adi daşi. Ci bani iz mas daca o minge costă 15 le, un tricou are pret dublu
fata de minge ar pentru o pereche de adidaşi Tudor a platit de 3 ori mai mult
decât a pint pe 3 tricouri în total

What is the upper quartile in the box plot?

What is the value of x in the following equation? -3x-2=2x+8

Scores on a university exam are normally distributed with a mean of 78 and a standard deviation of 8. the professor teaching the class declares that a score of 70 or higher is required for a grade of at least “c.” using the 68-95-99.7 rule, what percentage of students failed to earn a grade of at least “c”?