Rob says he can use 2 x 5 to find 4 x 5. is he correct

Yes, Rob can use 2 × 5 for multiplication of 4 × 5.

Step-by-step explanation:

We are given the following information in the question:

Rob can use 2 × 5 for multiplication of 4 × 5.

It can be used in the following manner:

Hence, Rob can do the multiplication in this way.

in the math equation 8 x 7 = 56, the 8 and the 7 are both factors of 56, since in this lesson we will use square tiles to figure out the factors of a whole find as many different arrays as you can, but follow one important rule: all the rows must have the i can make two rows of nine, so 2 and 9 are both factors of 18.

step-by-step explanation: