We have equation:
t=20x+31
x is number of years after 1997.
To calculate number of laptops in 2005:
x=2005-1997
x=8
t=20*8+31
t=160+31
t=191
In year 2005 school had 191 laptops.
Answer:
it goes by twelves
Step-by-step explanation:
it goes 12 24 36 48 60 72 84 96 and it keeps going till the end.
A=36 1/2*8*9 this is how you would figure out A
10 because it is teh number but with the opposite sign opposite of a posiive is a negative