You want to create an id code for the students in your school based on three characters. the first and second characters must be a letter of the alphabet, and the third must be a digit between 1 and 9 inclusive. if repeat letters are allowed, how many such codes are there? (use the multiplication principle.) a. 2106 different codes b. 6084 different codes c. 61 different codes d. 44 different codes

Solve the following system of equations express your answer as an ordered pair in the format (a,b) with no spaces between the numbers of symbols 5x+2y=22

What is the approximate mark up percentage rate before m equals $1740 marked up from p equals $19,422

In may you used 400 kilowatt-hours of energy for electricity. a. calculate the total electrical energy use in joules. b. calculate your average power use in watts. c. assume that your power supplier generates electricity by burning oil. note that 1 liter of oil releases 12 million joules of energy. how much oil is needed to generate the electricity you use? give your answer in both liters and gallons. a. the total electrical energy use was nothing _ joules. (type an integer or a decimal.) b. the average power use is nothing _ watts. (round to the nearest whole number as needed.) c. to generate the electricity you used, nothing _ l is needed. (round to the nearest whole number as needed.) to generate the electricity you used, nothing _ gal is needed. (round to two decimal places as needed.)