Aston university creates a 10 digit student number as the university enrolls each student. the first two characters must be a digit 1 through 9. the next seven characters can be anything and the last digit just can’t be the same as the ninth character (i. e. the previous digit). how many student numbers are possible?

in the attachment.   i didn't see your choices.   the word which means there is choices.

step-by-step explanation:

(x,y)

x tells you how much left or right you go from the origin

y tells you how much down or up you go from the origin

so for example (-3,2), you go left 3 and up twice. i denoted which of the ordered pairs is which in my graph.

what was there favorite food