A school contains students ingrades 1,2,3,4,5 and 6. Grades 2,3,4,5 and 6 all contain the samenumber of students, but there are twice this number in grade 1.

a)If a student is selected at random from a list of all thestudents in the school, what is the probability that he will be ingrade 3?
b)What is the probability that the selected student will be inan odd-numbered grade?

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.

The swimming pool is open when the high temperature is higher than 20∘c. lainey tried to swim on monday and thursday (which was 33 days later). the pool was open on monday, but it was closed on thursday. the high temperature was 30 ∘c on monday, but decreased at a constant rate in the next 33 days. write an inequality to determine the rate of temperature decrease in degrees celsius per day, d, from monday to thursday.

Write an equation for the function that includes the points (1,4/5) and (2,2/3)