10 digits.
0, 1, 2, 3, 4, 5, 6, 7, 8, and 9
$8 + $7 + $13 + 15 = $43
$x - $43 = $12
x = $55
i am a mathematics teacher. if anything to ask please pm me
$19/1.05= $18.095 rounds to $18.10
The sale tax on the item is $0.90
Answer:
simplified 
Step-by-step explanation:
To turn a mixed number into a fraction :

3 x 4 =12 +2 =14 that will be your numerator (top number on a fraction)
and 4 will be your demoninator (bottom number)
<span>4 9/10 divided by 2 3/5
</span>4 9/10 = 49/10
2 3/5 = 13/5
so
(49/10) / (13/5)
=49/10 * 5/13
= 49/26
or
= 1 23/26