If Richard bought two boxes of batteries at Sam's and each box had 4 packages containing 4 rows of 4 batteries each, how many batteries did Richard buy?

Richard bought 128 total batteries

Step-by-step explanation:

1. Multiply 4 by 4 to find the total batteries in one package

4 * 4 = 16

2. Now we know that there are 16 batteries per package. There are 4 packages in a box. Multiply 16 by 4

16 * 4 = 64

3. 64 represents the total number of batteries in a box. Since Richard bought two boxes, multiply 64 by 2

64 * 2 = 128

i belive those are the ones that are under 90 degreese.