You spin the spinner below once. what is the probability that the arrow will land on an even number?
a. 1/8
b. 3/8
c. 1/4
d. 1/2

The spinner has eight sections, 4 with odd numbers, 4 with even numbers.
This means there is a 4/8 chance of landing on an even number.
4/8 simplified is 1/2.
1/2 in decimal form is 0.5
0.5 in percent form is 50%
So there is a 50% chance that the spinner will land on an even number.

D. 1/2