Answer:
the expression that is equivalent to 8+20 is 4(2+5)
the missing factor in the expression 30+12=O(5+2) is 6
Explanation:
Using PEMDAS, we have to multiply the number on the outside by the numbers within the parentheses. 4 x 2 = 8, 4 x 5 = 20. 8 + 20 equals 28.