Solve the system of equations using elimination.

8x + 7y = -16
10x + 7y = -6

Use the normal approximation to the binomial distribution to answer this question. fifteen percent of all students at a large university are absent on mondays. if a random sample of 12 names is called on a monday, what is the probability that four students are absent?

What are the sotions to the quadratic equation 9x^2=4

Before simplifying, how many terms are there in the expression 2x - 5y + 3 + x?