Ounces:
To determine how much 6 baseballs would weigh in ounces, you would multiply the weight per ball by the number of balls.
5 × 6 = 30 ounces
6 baseballs weigh 30 ounces.
Pounds:
Now, we know that 1 ounce is equivalent to 0.0625 pounds. So, all you would have to do is multiply that by the number of ounces per ball then that amount by the number of balls.
5 × 0.0625 = 0.3125
0.3125 × 6 = 1.875 pounds
6 baseballs weigh 1.875 pounds.
I hope this helps!