Four students are called to sit in four chairs on
a stage. the students are bob, wanda, carol,
and don. bob and wanda are cousins. if the
students are called up in random order and take
seats in the order in which they are called, what
is the probability that bob and wanda will sit
next to each other? show your work.

The magnitude, m, of an earthquake is defined to be m=log l/s, where i is the intensity of the earthquake (measured by the amplitude of the seismograph wave) and s is the intensity of a “standard” earthquake, which is barely detectable. what is the magnitude of an earthquake that is 1,000 times more intense than a standard earthquake? use a calculator. round your answer to the nearest tenth.

Which of the following tables represents exponential functions?

14. (05.02 lc) what is the value of y in the solution to the following system of equations? (5 points) 2x + y = −4 5x + 3y = −6