Andrea fue a la tienda y compro una torta si en la noche y se comio 2/13 De la torta , La parte de la torta que no se Comio esta dada por
A. 10/13
B. 12/15
C. 11/13
D. 9/15

Two language majors, anna and megan, took exams in two languages. anna scored 85 on both exams. megan scored 74 on the first exam and 85 on the second exam. overall, student scores on the first exam had a mean of 82 and a standard deviation of 4, and the second exam scores had a mean of 71 and a standard deviation of 13. a) to qualify for language honors, a major must maintain at least an 85 average across all language courses taken. so far, which of anna and megan qualify? b) which student's overall performance was better?

Evaluate the discriminant of each equation. tell how many solutions each equation has and whether the solutions are real or imaginary. x^2 - 4x - 5 = 0

Prove that the value of the expression 7^8–7^7+7^6 is divisible by 43.