I would do 3+5 so then it equals 8
Answer:
all work is shown and pictured
Answer:
Step-by-step explanation:
There are 3 odd primes, namely : 3, 5, 7
The total amount of blocks is 9
The odds of picking and odd prime is
X-7=13
move -7 to the right side of the equation, change the sign from negative to positive when you move it
x-7+7=13+7
x=13+7
x=20
ummmmmm you dont need the explanation and I'd rather not type but trust me its d, good luck!