What is the distance from home to school?

F(x)=|x| is shifted down 4 units and to the right 3 units.

1yd 1 ft = 1 1/12 1 1/3 1 1/2 1 1/6

How many 3-digit numbers can you write using only digits 1 and 7? (of course, digits can repeat.) how many 3-digit numbers can you write using only digits 1 and 7? (of course, digits can repeat.)