Akey code must contain 4 letters and 3 numbers. the letters may be any letter of the alphabet. the numbers should be any number from 0 to 9. how many different key code combinations are there?
a. 456,976,000
b. 292,484,000
c. 6,824,000
d. 17,576,000

Aclass consists of 55% boys and 45% girls. it is observed that 25% of the class are boys and scored an a on the test, and 35% of the class are girls and scored an a on the test. if a student is chosen at random and is found to be a girl, the probability that the student scored an ais

What percent of the circle below is shaded?

Simplify 15(x - 4)(x -1)-3(x + 4)(x - 1) with steps