Question

Please help i need this asap please

Answer 1

7(1 + 3)

Step-by-step explanation:

7 + 21

= 7(1 + 3)

Other options:

3(3 + 7)

= 9 + 21

7(3 + 3)

= 21 + 21

3(1 + 7)

= 3 + 21

I hope this helps!

Answer 2

The first one

Step-by-step explanation:

7 + 21 = 28

7( 1 + 3 ) = 7 x 4 which is 28

since they are the same answer it's the first one

Why the others don't work:

3( 3 + 7) = 3 x 10 which is 30 not 28

7( 3 + 3) = 7 x 6 which is 42 again not 28

finally 3( 1 + 7) = 3 x 8 which is 24, and as you prob guessed, not 28.