Answer:
c=85
Step-by-step explanation:
use Pythagoras Theorem
a²+b²=c²
75²+40²=c²
5625+1600= ²
7225=c²
85=c
c = 0.18p
If you divide the number of pencils by the cost you'll get the cost of each pencil, and it's $0.18
8/9
Make 4 as a fraction. It turns to 4/1
2/9 x 4/1 = 8/9
